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Pullin Evolution Solar PES190 Installation And Servicing Instructions

PES300D PES210D PES190I PES210I PES250D PES250I PES300I

Made by: Pullin Evolution Solar
Type: Installation And Servicing Instructions
Category: Water Heater
Pages: 20
Size: 0.89 MB

 

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1

1

UNVENTED MAINS PRESSURE SOLAR WATER HEATERS

100 TO 300 LITRE CAPACITY

DIRECT AND INDIRECT MODELS

INSTALLATION AND SERVICING INSTRUCTIONS

PACK CONTENTS

Pullin Evolution unvented solar water heater incorporating immersion heater(s) and thermal controls

 Factory fitted temperature/pressure relief valve 

l

 Cold water combination valve assembly 

l

 Expansion vessel

and mounting bracket 

l

 Tundish 

l

 Motorised valve (indirect models only) 

l

 Compression nuts and olives

Immersion heater spanner 

l

 Installation instructions

IMPORTANT: PLEASE READ ALL THESE INSTRUCTIONS BEFORE

COMMENCING INSTALLATION

PLEASE LEAVE THIS MANUAL WITH THE CUSTOMER FOR

FUTURE REFERENCE

NOTE:

 Prior to installation the unit should be stored in

an upright position in an area free from excessive damp

or humidity.

INTRODUCTION

The Pullin Evolution Solar is a purpose designed

unvented solar water heater. The unit has a stainless

steel inner vessel, which ensures an excellent

standard of corrosion resistance. The outer casing is

a combination of resilient thermoplastic mouldings

and corrosion proofed steel sheet. All products are

insulated with CFC/HCFC free polyurethane foam to

meet the latest European heat loss requirements

(see Table 4).

The unit is supplied complete with all the necessary

safety and control devices needed to allow connec-

tion to the cold water mains. All these components

are preset and not adjustable.

This appliance complies with the requirements of the

CE marking directive and is Kiwa approved to show

compliance with Building Regulations (Section G3).

The following instructions are offered as a guide to

installation which must be carried out by a compe-

tent plumbing and electrical installer in accordance

with Building Regulation G3, The Building Standards

(Scotland) Regulations 1990, or The Building Regula-

tions (Northern Ireland).

 


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2

Table 1: Unit  weights

IMPORTANT NOTE:

THE PULLIN EVOLUTION SOLAR MUST BE INCOR-

PORATED INTO A FULLY PUMPED SOLAR PRIMARY

CIRCUIT. CONTROL OF THE SOLAR PRIMARY IS

ACHIEVED BY THE USE OF EXTERNAL CONTROLS

NOT SUPPLIED WITH THE UNIT.  CONTROL MUST BE

VIA A PURPOSE DESIGNED SOLAR HYDRAULIC

STATION AND SOLAR DIFFERENTIAL TEMPERA-

TURE CONTROLLER.

GENERAL REQUIREMENTS

SITING THE UNIT

The Pullin Evolution Solar must be installed vertically.

Although location is not critical, the following points

should be considered:

• The Pullin Evolution Solar should be sited to

ensure minimum dead leg distances, particularly

to the point of most frequent use.

• Avoid siting where extreme cold temperatures

will be experienced. All exposed pipework should

be insulated.

• The discharge pipework from the safety valves

must have minimum fall of 1:200 from the unit

and  terminate in a safe and visible position.

•  Access to associated controls and immersion

heaters should be possible to allow for periodic

servicing and maintenance.

•  Ensure that the base chosen for the Pullin Evo-

lution Solar is level and capable of permanently

supporting the weight when full of water  (see

Table 1).

The Pullin Evolution Solar has an operating pressure

of 3.5 bar that is controlled by the cold water combi-

nation valve assembly. The cold water combination

valve assembly can be connected to a maximum mains

pressure of 16 bar.

Wherever possible the mains supply pipe should be

22mm. We suggest the minimum supply requirements

should be 1.5 bar pressure and 20 litres per minute

flowrate. However, at these values outlet flow rates

may be poor if several outlets are used simultaneously.

The higher the available pressure and flow rate the

better the system performance.

OUTLET/TERMINAL FITTINGS   (TAPS, ETC.)

The Pullin Evolution Solar can be used with most

types of terminal fittings. It is advantageous in many

mixer showers to have balanced hot and cold water

supplies. In these instances a balanced pressure

cold water connection should be placed between the

2 pieces of the cold water combination valve assem-

bly (see Fig. 1). Outlets situated higher than the

Pullin Evolution Solar will give outlet pressures lower

than that at the heater, a 10m height difference will
result in a 1 bar pressure reduction at the outlet.

LIMITATIONS

The Pullin Evolution Solar should not be used in

association with any of the following:

• Solid fuel boilers or any other boiler in which

the energy input is not under effective thermo-

static control unless additional and appropriate

safety measures are installed.

• Ascending spray type bidets or any other class

1 back syphonage risk requiring that a type A air

gap be employed.

• Steam heating plants unless additional and ap-

propriate safety devices are installed.

• Situations where maintenance is likely to be ne-

glected or safety devices tampered with.

• Water supplies that have either inadequate pres-

sure or where the supply may be intermittent.

• Situations where it is not possible to safely pipe

away any discharge from the safety valves.

• In areas where the water consistently contains

a high proportion of solids, e.g. suspended matter

that could block the strainer, unless adequate fil-

tration can be ensured.

OPERATIONAL SUMMARY

Maximum mains pressure

16 bar

Operating pressure

3.5 bar

Expansion vessel charge pressure

3.5 bar

Expansion relief valve setting

6 bar

T&P relief valve setting

90°C/10 bar

Maximum primary circuit pressure

(auxillary coil) (indirect only)

3 bar

Maximum primary circuit pressure

(solar coil)

6 bar

Storage capacity

See Table 1

Weight when full

See Table 1

WATER SUPPLY

Bear in mind that the mains water supply to the prop-

erty will be supplying both the hot and cold water re-

quirements simultaneously. It is recommended that the

maximum water demand is assessed and the water

supply checked to ensure this demand can be satis-

factorily met.

Note: A high mains water pressure will not always

guarantee high flow rates.

Type

Model 

reference

Nominal 
capacity 

(litres)

Weight of 

unit full 

(kg)

DIRECT

PES190D

190

235

PES210D

210

259

PES250D

250

302

PES300D

300

362

INDIRECT PES190I

190

240

PES210I

210

264

PES250I

250

308

PES300I

300

367

 


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3

INSTALLATION – GENERAL
(FIGS 3 & 5)

PIPE FITTINGS

All pipe fittings are made via 22mm compression

fittings directly to the unit. The fittings are threaded

3/4”BSP male parallel should threaded pipe connec-

tions be required.

COLD FEED

A 22mm cold water supply is recommended, how-

ever if a 15mm (1/2”) supply exists which provides

sufficient flow this may be used (although more flow

noise may be experienced).

A stopcock or servicing valve should be incorporated

into the cold water supply to enable the Pullin

Evolution Solar and its associated controls to be

isolated and serviced.

COLD WATER COMBINATION VALVE ASSEMBLY

(FIG 1)

The 2-piece cold water combination valve assembly

can be located anywhere on the cold water mains

supply prior to the expansion vessel (see Fig. 5) but

the two pieces do not have to be installed together.

The pressure reducing valve incorporates the

pressure reducer & strainer and the expansion valve

incorporates the expansion & check valves. Ensure

that the valves are installed in the correct order and

orientation. No other valves should be placed

between the expansion valve and the Pullin Evolution

Solar unit. A connection can be made between the

expansion and pressure reducing valves to provide a

balanced cold water connection. The expansion

valve connection must not be used for any other

purpose.

EXPANSION VESSEL

The expansion vessel accommodates expansion that

results from heating the water inside the unit. The

unit is pre-charged at 3.5 bar. The expansion vessel

must be connected  between the expansion valve

(see Fig. 1) and the Pullin Evolution Solar (see Fig.

5). The location of the expansion vessel should allow

access to recharge the pressure as and when

necessary, this can be done using a normal car foot

pump. It is recommended that the expansion vessel

is adequately supported. An expansion vessel wall

mounting bracket is supplied for this purpose.

NOTE: DO NOT USE THE POTABLE WATER EXPAN-

SION VESSEL SUPPLIED WITH THE PULLIN

EVOLUTION SOLAR FOR ANY OTHER PURPOSE. IT

IS NOT SUITABLE FOR USE ON A SOLAR

PRIMARY CIRCUIT.

SECONDARY CIRCULATION

If secondary circulation is required it is recommended

that it be connected to the Pullin Evolution Solar as

shown in Fig. 2. The secondary return pipe should be

in 15mm pipe and incorporate a check valve to pre-

vent backflow. A suitable WRAS approved bronze cir-

culation pump will be required. On large systems, due

to the increase in system water content, it may be

necessary to fit an additional expansion vessel to the

secondary circuit. This should be done if the capacity

of the secondary circuit exceeds 10 litres.

Pipe capacity (copper)

15mm o/d = 0.13 l/m (10 litres = 77m)

22mm o/d = 0.38 l/m (10 litres = 26m)

28mm o/d = 0.55 l/m (10 litres = 18m)

Secondary circulation is NOT recommended for direct

electric units being used on Off Peak electricity tariffs.

OUTLET

The hot water outlet is a 22mm compression fitting

located at the top of the cylinder. Hot water distribu-

tion pipework should be 22mm pipe with short runs

of 15mm pipe to terminal fittings such as sinks and

basins. Pipe sizes may vary due to system design.

DRAIN TAP

A suitable draining tap should be installed in the cold

water supply to the Pullin Evolution Solar unit

between the expansion valve (see Fig. 1) and the

heater at as low a level as possible. It is recom-

mended that the outlet point of the drain pipework

be at least 1 metre below the level of the heater

(this can be achieved by attaching a hose to the

drain tap outlet spigot).

Fig. 1: Cold water combination valve assembly

Fig. 2: Secondary circulation connection

SECONDARY

CIRCULATION

PUMP

SECONDARY

RETURN

CHECK

VALVE

OUTLET T&P RELIEF

VALVE

SECONDARY

RETURN

CONNECTION

INLET

OUTLET

EXPANSION

VALVE

OUTLET

PRESSURE

REDUCING

VALVE

CARTRIDGE

& STRAINER

DIRECTION OF FLOW

BALANCED COLD

WATER CONNECTION

(NOT SUPPLIED)

EXPANSION VALVE

PRESSURE REDUCING VALVE

CHECK

VALVE

 


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4

Fig. 3: General Dimensions and features

190

9

1372

950

740

1019

1.1

110

115

190

9

1372

732

803

923

1019

1.1

110

0.61

11.9

20

210

9

1473

1000

759

1184

1.1

130

136

210

9

1473

892

808

1095

1184

1.1

130

0.68

15.2

20

250

9

1731

1072

773

1391

1.1

163

171

250

9

1731

1160

883

1258

1391

1.1

163

0.79

15.2

23

300

9

2038

1409

870

1715

1.1

198

208

300

9

2038

1438

1023

1573

1715

1.1

198

0.79

17.4

25

NOTES:

SOLAR 

SURFACE 

AREA (m²)

F

E

NOMINAL 

CAPACITY 

(litres)

TYPE

DIMENSIONS (mm)

A

B

C

D

2. Direct heating times assume use of lower element only and auxillary cylinder volume being heated

SURFACE 

AREA (m²)

RATING   

(kW)

RECOVERY 

(mins)

1. Recovery time based on heating 70% of auxillary volume through 45°C

AUXILLARY 

VOLUME 

(litres)

AUXILLARY COIL

HEATING 

TIME DIRECT 

(mins)

DIRECT INDIRECT

370

433

D

C

B

A

29

412

E

F

SOLAR

PRIMARY

RETURN

SOLAR

PRIMARY 

FLOW

AUX. BOILER RETURN

(INDIRECT ONLY)

AUX. BOILER RETURN

(INDIRECT ONLY)

AUX. BOILER FLOW

(INDIRECT ONLY)

T&P VALVE

SECONDARY

RETURN

BOOST IMM. HTR.

(DIRECT ONLY)

INLET

AUX. CONTROL

HOUSING
SOLAR CONTROL

HOUSING

Ø550

20°

75°

90°

 


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5

5

Worked example of discharge pipe sizing

The example below is for a G1/2 temperature relief

valve with a discharge pipe (D2) having 4 No. elbows

and length of 7m from the tundish to the point of

discharge.

From Table 4:

Maximum resistance allowed for a straight length of

22mm copper discharge pipe (D2) from a G1/2

temperature relief valve is 9.0m.

DISCHARGE PIPEWORK

It is a requirement of Building Regulation G3 that any

discharge from an unvented system is conveyed to

where it is visible, but will not cause danger to

persons in or about the building. The tundish and

discharge pipes should be fitted in accordance with

the requirements and guidance notes of Building

Regulation G3. The G3 Requirements and Guidance

section 3.9 are reproduced in the following sections.

Information Sheet No. 33 available from the British

Board of Agrément gives further advice on discharge

pipe installation. For discharge pipe arrangements

not covered by G3 Guidance or BBA Info Sheet No.33

advice should be sought from your local Building

Control Officer.

G3 REQUIREMENT

“...there shall be precautions...to ensure
that the hot water discharged from safety
devices is safely conveyed to where it is
visible but will not cause danger to
persons in or about the building.”

G3 GUIDANCE SECTION 3.9

The discharge pipe (D1) from the vessel up
to and including the tundish is generally
supplied by the manufacturer of the hot
water storage system. Where otherwise,
the installation should include the
discharge pipe(s) (D1) from the safety
device(s). In either case the tundish
should be vertical, located in the same
space as the unvented hot water storage
system and be fitted as close as possible
and within 500mm of the safety device e.g.
the temperature relief valve.
The discharge pipe (D2) from the tundish
should terminate in a safe place where
there is no risk to persons in the vicinity of
the discharge, preferably be of metal and:
a.  be at least one pipe size larger than the
nominal outlet size of the safety device
unless its total equivalent hydraulic
resistance exceeds that of a straight pipe
9m long i.e. discharge pipes between 9m
and 18m equivalent resistance length
should be at least two sizes larger than
the nominal  outlet size of the safety
device, between 18 and 27m at least 3
sizes larger , and so on. Bends must be
taken into account in calculating the flow
resistance. Refer to Diagram 1, Table 1 and
the worked example.
An alternative approach for sizing dis-
charge pipes would be to follow BS
6700:1987 Specification for design instal-
lation, testing and maintenance of ser-
vices supplying water for domestic use
within buildings and their curtilages,
Appendix E, section E2 and table 21.
b.  have a vertical section of pipe at least
300mm long, below 

t

he tundish before

any elbows or bends in the pipework.
c.  be installed with a continuous fall.
d.  have discharges visible at both the
tundish and the final point of discharge
but where this is not possible or is practi-
cally difficult there should be clear
visibility at one or other of these locations.
Examples of acceptable discharge ar-
rangements are:

i.   ideally below a fixed grating and
above the water seal in a trapped gully.
ii.  downward discharges at low level;
i.e. up to 100mm above external surfaces
such as car parks, hard standings,
grassed areas etc. are acceptable pro-
viding that where children may play or
otherwise come into contact with dis-
charges a wire cage or similar guard is
positioned to prevent contact, whilst
maintaining visibility.
iii. discharges at high level; e.g. into a
metal hopper and metal down pipe with
the end of the discharge pipe clearly
visible (tundish visible or not) or onto a
roof capable of withstanding high tem-
perature discharges of water and 3m
from any plastics guttering system that
would collect such discharges (tundish
visible).
iv. where a single pipe serves a number
of discharges, such as in blocks of flats,
the number served should be limited to
not more than 6 systems so that any
instalation discharging can be traced
reasonably easily. The single common
discharge pipe should be at least one
pipe size larger than the largest indi-
vidual discharge pipe (D2) to be con-
nected. If unvented hot water storage
systems are installed where discharges
from safety devices may not be appar-
ent i.e. in dwellings occupied by blind,
infirm or disabled people, consideration
should be given to the installation of an
electronically operated device to warn
when discharge takes place.

Note: 

The discharge will consist of

scalding water and steam. Asphalt, roof-
ing felt and non-metallic rainwater
goods may be damaged by such dis-
charges.

 


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6

Subtract the resistance for 4 No. 22mm elbows at

0.8m each = 3.2m

Therefore the permitted length equates to: 5.8m

5.8m is less than the actual length of 7m therefore

calculate the next largest size.

Maximum resistance allowed for a straight length of

28mm pipe (D2) from a G1/2 temperature relief

valves equates to 18m.

Subtract the resistance of 4 No. 28mm elbows at

1.0m each = 4.0m

Therefore the maximum permitted length equates

to: 14m

As the actual length is 7m, a 28mm (D2) copper pipe

will be satisfactory.

WARNINGS

• Under no circumstances should the factory fit-

ted temperature/pressure relief valve be removed

other than by a competent person. To do so will

invalidate any guarantee or claim.

• The cold water combination valve assembly must

be fitted to the mains water supply to the Pullin

Evolution Solar unit.

• No control or safety valves should be tampered

with.

• The discharge pipe should not be blocked or

used for any other purpose.

• The tundish should not be located adjacent to

any electrical components.

Valve outlet size

Minimum size of 

discharge pipe 

D1

Minimum size of 

discharge pipe 

D2 from tundish

Maximum 

resistance 

allowed, expressed 

as a length of 

straight pipe (i.e. 

no elbows or 

bends)

Resistance 

created by each 

elbow or bend

G1/2

15mm

22mm           
28mm           
35mm

up to 9m          

up to 18m         
up to 27m

0.8m            
1.0m            
1.4m

G3/4

22mm

28mm           
35mm           
42mm

up to 9m          

up to 18m         
up to 27m

1.0m            
1.4m            
1.7m

G1

28mm

35mm           
42mm           
54mm

up to 9m          

up to 18m         
up to 27m

1.4m            
1.7m            
2.3m

Table 2: Sizing of copper discharge pipe (D2) for common temperature relief valve outlet sizes

Fixed grating

Discharge below
fixed grating
(Building Regulation
G3 section 3.9d gives

alternative points
of discharge)

Trapped

gully

Discharge pipe (D2) from tundish,

with continuous fall. See Building

Regulation G3 section 3.9d i-iv,

Table 4 and worked example

300mm
minimum

500mm maximum

Metal discharge pipe (D1) from
Temperature relief valve to tundish

Tundish

Safety device
(e.g. Temperature

relief valve)

Fig.4: Typical discharge pipe arrangement (extract from Building Regulation G3 Guidance section)

 


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7

7

Fig. 5: Typical installation - schematic

Fig.6 Electrical Connections (Schematic)

DIRECT MODELS

AUXILLARY HEATING CONTROL

EARTH
CONNECTION

THERMOSTAT

FUSED (13A) DOUBLE

POLE ISOLATING

SWITCH

1.5mm² 3-CORE

HOFR SHEATHED

CABLE

Note: On models fitted with two elements each element must
be wired individually in accordance with the diagram above

A

B

BLUE

BROWN

GREEN/
YELLOW

1 2

GREEN/

YELLOW

13 AMP MAINS

SUPPLY. 1.5mm2

MIN. CABLE SIZE

TO INDIRECT SYSTEM

CONTROLS JUNCTION 

BOX

GREEN/

YELLOW

BROWN

BLUE

3

DIRECT

THERMOSTAT

B

A

1

1

2

2 3

INDIRECT

THERMOSTAT

INDIRECT THERMAL

CUT-OUT

EXPANSION

VESSEL

COLD WATER

COMBINATION

VALVE

(2-PIECE)

T&P RELIEF

VALVE

TO HOT 

OUTLETS

MAINS 

WATER

SUPPLY

ISOLATING

VALVE (NOT

SUPPLIED)

TUNDISH

DISCHARGE

PIPE

DRAIN COCK

(NOT SUPPLIED)

SOLAR PRIMARY

RETURN

SOLAR PRIMARY

FLOW

SOLAR

CONTROLS

HOUSING

INLET

BOOST ELEMENT/

AUX. CONTROL

HOUSING

NOTE: AUXILLARY HEATING COIL FITTED ON 190 TO 300 INDIRECT MODELS ONLY

BALANCED 

COLD WATER

CONNECTION

(IF REQUIRED)

AUX. PRIMARY

RETURN

AUX. PRIMARY

FLOW

SECONDARY RETURN TAPPING

(IF REQUIRED - INDIRECT ONLY)

 


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8

INSTALLATION - DIRECT UNITS

PLUMBING CONNECTIONS

Direct units require the following pipework connec-

tions.

Cold water supply to and from inlet controls.

Outlet to hot water draw off points.

Discharge pipework from valve outlets to tundish.

ELECTRICAL SUPPLY (FIG. 6)

Pullin Evolution Solar units are fitted with two 3kW

immersion heaters as standard. It is recommended

that these should be wired via a suitable controller

to BSEN 60730. 

The Pullin Evolution Solar MUST

be earthed.

All wiring to the unit must be installed in accordance

with the latest IEE Wiring Regulations and the circuit

must be protected by a suitable fuse and double pole

isolating switch with a contact separation of at least

3mm in both poles. The Live and Neutral connections

are made directly onto the combined thermostat and

thermal cut-out located under the terminal cover(s)

mounted on the front of the unit. The earth connec

tion should be made to the earth connection located

to the side of the immersion heater boss(es). The

supply cable must be routed through the cable gland

located on the unit casing beneath the terminal

housing.

DO NOT

 operate the immersion heaters until the

Pullin Evolution Solar has been filled with water.

INSTALLATION - SOLAR PRIMARY

CONNECTION TO SOLAR PRIMARY CIRCUIT

The lower (solar) coil of the Pullin Evolution Solar

must

 be connected to a fully pumped solar primary

circuit. The connections are suitable for 22mm

copper pipe direct to the compression fittings

provided. The connections are also threaded 3/4”

BSP male parallel should BSP be required.

The solar primary circuit should have its own

dedicated circulating pump and safety controls which

must be installed as per the manufacturers instruc-

tions.

CONTROL OF SOLAR PRIMARY CIRCUIT

Temperature control of the Pullin Evolution Solar

must

 be carried out using a suitable proprietory

Solar Controller/Programmer. The cylinder tempera

ture sensing probe (supplied with the solar control

ler) should be fully insterted into the pocket provided

on the Pullin Evolution Solar and its cable secured

using the cable clamps on the controls housing (see

Fig.7).

Connection to the solar controller should be in

accordance with manufacturer’s instructions. The

solar controller should be programmed to give a

cylinder temperature of approximately 60°C

(maximum 70°C).

SAFETY

DISCONNECT FROM THE MAINS SUPPLY BEFORE

REMOVING ANY COVERS. 

Never attempt to replace

the immersion heater(s) other than with the recom-

mended Pullin immersion heater(s).

DO NOT BYPASS THE THERMAL CUT-OUT(S) IN

ANY CIRCUMSTANCES. 

Ensure the two male spade

terminations on the underside of the combined

thermostat and thermal cut-out are pushed firmly

onto the corresponding terminations on the element

plate assembly.

In case of difficulty contact service support; contact

details available at the back of this booklet.

Fig. 7: Solar Control Connections

The solar controller and solar primary circulation

pump 

must

 be wired via the over-temperature cut-

out mounted in the lower solar controls housing (see

Fig. 7). This will ensure that the heat input to the

solar coil is interrupted in the event of the cylinder

over-heating. There must also be suitable check

(non-return) valves installed in the solar primary

flow and return to prevent the possibility of any

thermo-syphoning if the solar circulation is stopped.

1 2 3

SOLAR DIFFERENTIAL

CONTROLLER

(NOT SUPPLIED)

SOLAR CYLINDER

CONTROLS HOUSING

CYLINDER

TEMPERATURE

CONTROL

PROBE

TERMINAL

BLOCK

OVER

TEMPERATURE

CUT OUT

L

N

CABLE

CLAMPS

 


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9

9

INSTALLATION - AUXILLARY
HEATING COIL

 PLUMBING CONNECTIONS

Indirect units require the following pipework

connections.

Cold water supply to and from inlet controls.

Outlet to hot water draw off points.

Discharge pipework from valve outlets to tundish

Connection to the auxillary primary circuit.

Primary connections are 22mm compression. However,

3/4”BSP parallel threaded fittings can be fitted to the

primary coil connections if required.

ELECTRICAL SUPPLY (FIG. 6)

All Indirect units are fitted with a 3kW immersion

heater and a combined thermostat and thermal cut-

out to control the primary heating source. 

The Pullin

Evolution Solar MUST be earthed.

All wiring to the unit must be installed in accordance

with the latest IEE Wiring Regulations and the supply

circuits must be protected by a suitable fuse and

double pole isolating switch with a contact separa-

tion of at least 3mm in both poles. Connection to the

immersion heater thermostat(s) are made in

accordance with the ‘INSTALLATION - DIRECT

UNITS’ section. All auxillary heating source (boiler)

connections are made to the terminal block located

under the terminal cover mounted on the side of the

unit. The supply cable(s) must be routed through the

cable grip(s) in the terminal housing.

DISCONNECT FROM MAINS SUPPLY BEFORE

REMOVING ANY COVERS. DO NOT

 

BYPASS THE

THERMAL CUT-OUTS IN ANY CIRCUMSTANCES.

Ensure the thermostat and thermal cut-out sensing

bulbs are pushed fully into the pockets on the

element plate assembly.

BOILER SELECTION

The boiler should have a control thermostat and non

self-resetting thermal cut-out and be compatible

with unvented storage water heaters.

Where use of a boiler without a thermal cut-out is

unavoidable a “low head” open vented primary

circuit should be used. The feed and expansion

cistern head above the Pullin Evolution Solar should

not exceed 2.5m.

AUXILLARY PRIMARY CIRCUIT CONTROL

The 2-port motorised valve supplied with the Pullin

Evolution Solar indirect units MUST be fitted to the

primary auxillary circuit flow to the Pullin Evolution

Solar heat exchanger and wired in series with the

indirect thermostat and thermal cut-out fitted to the

unit.

Primary circulation to the Pullin Evolution Solar heat

exchangers must be pumped; gravity circulation

WILL NOT WORK.

 


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10

Fig. 8: Schematic wiring diagram - Basic 2 x 2 port valve system

Fig.9: Schematic wiring diagram - 3 port mid position valve system. N.B. Must be used in conjunction with 2

port zone valve supplied

PROGRAMMER

BOILER

PUMP

ROOM STAT

ZONE VALVE (DHW)

(SUPPLIED)

ZONE VALVE (HTG)

CYLINDER

TERMINAL BLOCK

JUNCTION BOX

1 2 3 4 5 6 7 8 9 10

1 2 3 4 5 6 7 8 9 10

L N

L N

G Br Bl O

G Br Bl O GY

1 3 2

L

N

2 3

HTG

DHW

ON

ON

1

2

2

3

1

2

1

2 3

2 3

2

3

L N

(SUPPLY)

1

3

NOTES:

CONTROL TERMINAL NUMBERING MAY DIFFER FROM THOSE SHOWN.

REFER TO INSTRUCTIONS WITH CONTROLS SELECTED.

A DOUBLE POLE ISOLATING SWITCH MUST BE INSTALLED IN THE MAINS SUPPLY.

ALL EARTH CONNECTIONS MUST BE CONNECTED BACK TO THE MAINS EARTH SUPPLY.

CONTROL CIRCUIT FOR AUXILLARY HEATING BOILER ONLY.

SEPARATE CONTROLS WILL BE REQUIRED FOR THE SOLAR PRIMARY CIRCUIT.

PROGRAMMER

BOILER

PUMP

ROOM STAT

ZONE VALVE (DHW)

(SUPPLIED)

ZONE VALVE (HTG)

CYLINDER

TERMINAL BLOCK

JUNCTION BOX

1 2 3 4 5 6 7 8 9 10

1 2 3 4 5 6 7 8 9 10

L N

G Br Bl O

G

W Bl O GY

1 3 2

L

N

2 3

2

2

3

1

2

2 3

2

3

L N

(SUPPLY)

1

3

L N

HTG

DHW

ON

ON

1 2 3

DHW

OFF

NOTES:

CONTROL TERMINAL NUMBERING MAY DIFFER FROM THOSE SHOWN.

REFER TO INSTRUCTIONS WITH CONTROLS SELECTED.

A DOUBLE POLE ISOLATING SWITCH MUST BE INSTALLED IN THE MAINS SUPPLY.

ALL EARTH CONNECTIONS MUST BE CONNECTED BACK TO THE MAINS EARTH SUPPLY.

CONTROL CIRCUIT FOR AUXILLARY HEATING BOILER ONLY.

SEPARATE CONTROLS WILL BE REQUIRED FOR THE SOLAR PRIMARY CIRCUIT.

 


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11

11

COMMISSIONING

 FILLING THE UNIT WITH WATER

Check expansion vessel pre-charge pressure.

The vessel is supplied pre-charged to 3.5 bar to

match the control pressure of the pressure reduc-

ing valve. The pre-charge pressure is checked us-

ing a car tyre gauge by unscrewing the plastic cap

opposite the water connection.

Check all connections for tightness including the

immersion heater(s). An immersion heater key

spanner is supplied for this purpose.

Ensure the drain cock is 

CLOSED.

Open a hot tap furthest from the Pullin Evolu-

tion Solar.

Open the mains stop cock to fill the unit. When

water flows from the tap, allow to run for a few

minutes to thoroughly flush through any residue,

dirt or swarf, then close the tap.

Open successive hot taps to purge the system

of air.

SYSTEM CHECKS

Check all water connections for leaks and rec-

tify as necessary.

Remove the pressure reducing valve headwork

to access the strainer mesh; clean and re-fit.

Manually open, for a few seconds, each relief

valve in turn, checking that water is discharged

and runs freely through the tundish and out at the

discharge point.

Ensure that the valve(s) reseat satisfactorily.

SOLAR PRIMARY CIRCUIT

Fill the solar primary circuit following the instructions

provided with the solar hydraulic controls. The

cylinder temperature control probe supplied with the

solar controller must be fully inserted into the pocket

in the lower controls housing and the cable securely

clamped. Heating by the solar primary circuit is

controlled by the solar controller; refer to the

manufacturer’s installation instructions for details of

how to set up and connect the solar primary circuit.

The solar controller should be programmed to give a

maximum storage temperature in the Pullin Evolution

Solar of 70

o

C; 60

o

C is recommended to minimise

scaling.

SECONDARY HEATING COIL

Fill the indirect secondary circuit following the boiler

manufacturer’s commissioning instructions. To

ensure the Pullin Evolution Solar auxillary heat

exchanger is filled, the 2 port motorised valve

(supplied) should be manually opened by moving the

lever on the motor housing to the FLUSHING ONLY

setting. When the circuit is full return the lever to the

NORMAL USE position. Switch on the boiler, ensure

the programmer is set to Domestic Hot Water and

allow the Pullin Evolution Solar to heat up to a

normal working temperature (60

o

C recommended,

approximately graduation 4 on the thermostat). If

necessary the temperature can be adjusted by

inserting a flat bladed screwdriver in the adjustment

knob (located on top of the thermostat mounting

bracket - see Fig.10) and rotating. The minimum

thermostat setting is 10

o

C. The adjustment range 1

to 5 represents a temperature range of 30 to 70

o

C.

Check the operation of the indirect thermostat and

2-port motorised valve and that no water has issued

from the expansion relief valve or temperature/

pressure relief valve during the heating cycle.

BENCHMARK

TM

 LOG BOOK

On completion of the installation and commissioning

of the Pullin Evolution Solar the Benchmark

TM

 ‘Instal-

lation, Commissioning and Service Record Log Book’

should be completed and signed off by the compe-

tent installer or commissioning engineer in the

relevant sections. The log book is included in the

back of this instruction book.

The various system features, location of system

controls, user instructions and what to do in the

event of a system failure should be explained to the

customer. The customer should then countersign the

Benchmark

TM

 log book to accept completion.

This book should be left with the customer. The log

book includes sections that should be filled out when

any subsequent service or maintenance operation is

carried out on the Pullin Evolution Solar system.

DIRECT UNITS

Switch on electrical supply to the immersion

heater(s) and allow the Pullin Evolution Solar to heat

up to normal working temperature (60ºC recom

mended, approximately graduation 4 on the thermo

stat). If necessary the temperature can be adjusted

by inserting a flat bladed screwdriver in the adjust

ment knob on top of the immersion heater thermo

stat and rotating.

The adjustment range 1 to 5 represents a tempera

ture range of 10

o

 to 70

o

C. Check the operation of

thermostat(s) and that no water has issued from the

expansion relief valve or temperature/pressure

relief valve during the heating cycle.

 


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12

DESCALING IMMERSION HEATER(S)

Before removing the immersion heater(s) the unit

must be drained. 

Ensure the water, electrical

supply, boiler and solar primary circuit are OFF

before draining

. Attach a hosepipe to the drain

cock having sufficient length to take water to a

suitable discharge point below the level of the  unit.

Open a hot tap close to the unit and open drain cock

to drain unit.

MAINTENANCE

MAINTENANCE REQUIREMENTS

Unvented hot water systems have a continuing

maintenance requirement in order to ensure safe

working and optimum performance. It is essential

that the relief valve(s) are periodically inspected and

manually opened to ensure no blockage has oc-

curred in the valves or discharge pipework. Similarly

cleaning of the strainer element and replacement of

the air in the expansion vessel will help to prevent

possible operational faults.

The maintenance checks described below should be

performed by a competent installer on a regular

basis, e.g. annually to coincide with boiler mainte-

nance.

SAFETY VALVE OPERATION

Manually operate the temperature/pressure relief

valve for a few seconds. Check water is discharged

and that it flows freely through the tundish and

discharge pipework. Check valve reseats correctly

when released. 

NOTE: Water discharged may be

very hot!

Repeat the above procedure for the expansion valve.

STRAINER

Turn off the cold water supply, boiler and immersion

heaters. The lowest hot water tap should then be

opened to de-pressurise the system. Remove the

pressure reducing valve cartridge to access the

strainer mesh. Wash any particulate matter from the

strainer under clean water. Re-assemble ensuring

the seal is correctly fitted, DO NOT use any other

type of sealant.

INDIRECT

THERMAL

CUT-OUT

CABLE

CLAMPS

TERMINAL BLOCK

INDIRECT

THERMOSTAT

THERMOSTAT

ADJUSTMENT

INDIRECT THERMAL

CUT-OUT RESET BUTTON

NOTE: THE HOUSING COVER AND

ELEMENT ASSEMBLY HAVE BEEN REMOVED

FROM THIS VIEW FOR CLARITY

Fig. 10: Indirect thermostat and thermal cut-out

DIRECT MODELS:

Open the cover(s) to the immersion heater

housing(s) and disconnect wiring from the

thermostat mounted on top of the immersion

heater(s). Remove the thermostat by carefully

pulling outwards from the immersion heater.

Unscrew immersion heater backnut(s) and

remove immersion heater from the unit. A key

spanner is supplied with the Pullin Evolution

Solar unit for easy removal/tightening of the

immersion heater(s). Over time the immersion

heater gasket may become stuck to the mating

surface. To break the seal insert a round bladed

screwdriver into one of the pockets on the

immersion heater and gently lever up and down.

INDIRECT MODELS:

Open the cover(s) to the immersion heater

housing(s) and disconnect wiring from immer-

sion heater(s). Remove the thermostat by

carefully pulling outwards from the immersion

heater. Remove thermostat capillary sensors

from the pockets on the immersion heater.

Unscrew immersion heater backnut(s) and

remove immersion heater from the unit. A key

spanner is supplied with the Pullin Evolution

Solar unit for easy removal/tightening of the

immersion heater(s). Over time the immersion

heater gasket may become stuck to the mating

surface. To break the seal insert a round bladed

screwdriver into one of the pockets on the

immersion heater and gently lever up and down.

Carefully remove any scale from the surface of

the element(s). DO NOT use a sharp implement

as damage to the element surface could be

caused. Ensure sealing surfaces are clean and

seals are undamaged, if in doubt fit a new

gasket.

Replace immersion heater(s) ensuring the lower

(right angled) element hangs vertically down-

wards towards the base of the unit. It may be

helpful to support the immersion heater using a

round bladed screwdriver inserted into one of

the thermostat pockets whilst the backnut is

tightened. Replace thermostat capillaries into

pocket (indirect models). Replace the immersion

heater thermostat by carefully plugging the two

male spade terminations on the underside of the

thermostat head into the corresponding termina-

tions on the element. Rewire, check, close and

secure immersion heater housing cover(s).

 


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13

13

PULLIN EVOLUTION SOLAR EXPANSION VESSEL

CHARGE PRESSURE

Remove the dust cap on top of the vessel. Check the

charge pressure using a tyre pressure gauge. The

pressure (with system de-pressurised) should be

3.5bar. If it is lower than the required setting it

should be re-charged using a tyre pump (Schrader

valve type). DO NOT OVER CHARGE. Re-check the

pressure and when correct replace the dust cap.

RE-COMMISSIONING

Check all electrical and plumbing connections are

secure. Close the drain cock. With a hot tap open,

turn on the cold water supply and allow unit to refill.

DO NOT switch on the immersion heater(s) or boiler

until the unit is full. When water flows from the hot

tap allow to flow for a short while to purge air and

flush through any disturbed particles. Close hot tap

and then open successive hot taps in system to

purge any air.

When completely full and purged check system for

leaks. The heating source (immersion heater(s),

boiler or solar primary circuit) can then be switched

on.

BENCHMARK

TM

 LOG BOOK

On completion of any maintenance or service of the

Pullin Evolution Solar the Benchmark

TM

 “Installation,

Commissioning and Service Record Log Book” should

be filled in to record the actions taken and the date

the work was undertaken. The log book is included

in the back of this instruction book.

USER INSTRUCTIONS

WARNINGS

IF WATER ISSUES FROM THE TEMPERATURE/

PRESSURE RELIEF VALVE ON THE PULLIN EVOLU-

TION SOLAR SWITCH OFF ELECTRICAL SUPPLY

TO THE IMMERSION HEATER(S) (DIRECT UNITS),

SHUT DOWN THE BOILER (INDIRECT UNITS) AND

SHUT DOWN THE SOLAR PRIMARY CIRCUIT. DO

NOT TURN OFF ANY WATER SUPPLY. CONTACT A

COMPETENT INSTALLER FOR UNVENTED WATER

HEATERS TO CHECK THE SYSTEM.

DO NOT TAMPER WITH ANY OF THE SAFETY

VALVES FITTED TO THE PULLIN EVOLUTION

SOLAR SYSTEM. IF A FAULT IS SUSPECTED

CONTACT A COMPETENT INSTALLER.

TEMPERATURE CONTROLS - SOLAR

Temperature control of the solar primary coil is by

means of solar differential temperature controller.

This will usually have been set during commissioning

to give a storage temperature of approximately

60

o

C. Refer to user instructions supplied with the

controller for details of how to adjust this if required.

TEMPERATURE CONTROLS – DIRECT  UNIT

IMMERSION  HEATER(S)

A combined adjustable thermostat and thermal cut-

out is provided for each immersion heater. The

thermostat is factory set to give a water storage

temperature of approx. 55 to 60

o

C. Access to the

thermostat can be made by opening the immersion

heater cover - DISCONNECT THE ELECTRICAL

SUPPLY BEFORE OPENING THE COVER(S). Tempera-

ture adjustment is made by inserting a flat bladed

screwdriver in the slot on the adjustment disc on top

of the thermostat and rotating. The adjustment

range 1 to 5 represents a temperature range of 10

to 70

o

C (60

o

C will be approximately position 4). If in

any doubt contact a competent electrician.

DO NOT bypass the thermal cut-out(s) in any

circumstances.

TEMPERATURE CONTROLS – INDIRECT

 UNITS (Fig. 9)

The Pullin Evolution Solar indirect units are fitted

with an indirect thermostat and thermal cut-out.

These controls must be wired in series with the 2-

port motorised zone valve supplied to interupt the

flow of primary water around the heat exchanger

coil when the control temperature has been

reached. The controls are located within the upper

white terminal housing along with the immersion

heater thermostat. The thermostat is factory set to

give a water storage temperature of approx. 55 to

60

o

C. Access to the thermostat can be made by

opening the terminal housing cover - DISCONNECT

THE ELECTRICAL SUPPLY BEFORE OPENING THE

COVER.

 


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14

FAULT FINDING AND SERVICING

IMPORTANT

Servicing should only be carried out by com-

petent persons in the installation and maintenance

of unvented water heating systems.

Any spare parts used MUST be authorised

Pullin Evolution Solar parts.

Disconnect the electrical supply before remov-

ing any electrical equipment covers.

NEVER bypass any thermal controls or oper-

ate system without the necessary safety valves.

Water contained in the Pullin Evolution Solar

unit may be very hot, especially following a ther-

mal control failure. Caution must be taken when

drawing water from the unit.

SPARE PARTS

A full range of spare parts are available for the Pullin

Evolution Solar range. Refer to the Technical Data la-

bel on the unit to identify the model installed and en-

sure the correct part is ordered.

Description

Part no.

Immersion heater (bent)

95 606 961

Immersion heater (straight)

95 606 962

Immersion heater gasket

95 611 822

Immersion heater backnut

95 607 869

Solar temperature probe

pocket plate

95 607 064

Immersion heater key

95 607 861

Tundish

95 605 838

Expansion valve cartridge - 6bar

95 605 864

Expansion valve complete - 6bar

95 607 030

Cold water combination valve complete 95 605 047

Cold water combination valve body

95 605 048

Pressure reducing valve

cartridge 3.5bar

95 607 029

Temperature/Pressure Relief Valve

95 605 810

Expansion vessel 25 litre

95 607 612

Direct controls

Combined thermostat and thermal

cut-out

95 612 026

Terminal cover

95 614 089

Indirect controls

Indirect thermostat

95 612 697

Indirect Thermal cut-out and

Solar Cut-out

95 612 698

Motorised valve 2-port

95 605 049

Terminal housing

95 614 090

4 Way terminal block

95 607 902

Temperature adjustment is made by inserting a flat

bladed screwdriver in the adjustment knob and

rotating. The minimum thermostat setting is 10

o

C.

The adjustment range 1 to 5 represents a tempera-

ture range of 30 to 70

o

C (60

o

C will be approximately

position 4). If in any doubt contact a competent

electrician.

On indirect units an immersion heater is also

provided for use should the indirect heat source be

shut down for any purpose. The immersion heater

control temperature is set using the immersion

heater (direct) thermostat, see User Instructions

section for details.

DO NOT bypass the thermal cut-out(s) in any

circumstances.

FLOW PERFORMANCE

When initially opening hot outlets a small surge in

flow may be noticed as pressures stabilise. This is

quite normal with unvented systems. In some areas

cloudiness may be noticed in the hot water. This is

due to aeration of the water, is quite normal and will

quickly clear.

OPERATIONAL FAULTS

Operational faults and their possible causes are

detailed in the Fault Finding section of this book. It is

recommended that faults should be checked by a

competent installer.

The air volume within the expansion vessel will

periodically require recharging to ensure expanded

water is accommodated within the unit. A discharge

of water 

INTERMITTENTLY

 from the expansion valve

will indicate the air volume has reduced to a point

where it can no longer accommodate the expansion.

 


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15

15

 FAULT FINDING

The Fault Finding chart below will enable operational

faults to be identified and their possible causes

rectified. Any work carried out on the Pullin Evolution

Solar water heater and its associated controls MUST

be carried out by a competent installer for unvented

water heating systems. In case of doubt contact

Service Support.

DO NOT TAMPER WITH ANY OF THE SAFETY

VALVES OR CONTROLS SUPPLIED WITH THE

PULLIN EVOLUTION SOLAR AS THIS WILL

INVALIDATE ANY GUARANTEE

Table 3: Fault Finding Chart

WARNING

Table 4: Standing heat losses (ba

sed on an ambient

air temperature of 20

o

C and a stored water tem-

perature of 65

o

C)

OTHER INFORMATION

ENVIRONMENTAL INFORMATION

Pullin products are manufactured from many recyclable

materials. At the end of their useful life they should be

disposed of at a Local Authority Recycling Centre in

order to realise the full environmental benefits.

Insulation is by means of an approved CFC/HCFC free

polyurethane foam with an ozone depletion factor of

zero.

per day 

(kWh/24h)

per year 

(kWh/365d)

190

2.11

770

210

2.30

840

250

2.45

894

300

2.72

993

Nominal 

Capacity 

(litres)

Standing Heat Loss

FAULT

POSSIBLE CAUSE

REMEDY

1. Mains supply off.

1. Check and open stop cock.

2. Strainer blocked.

2. Turn off water supply. Remove strainer 
and clean (see Maintenance section).

3. Cold Water Combination Valve 
incorrectly fitted.

3. Check and refit as required.

1. DIRECT immersion heater not 
switched on.

1. Check and switch on.

2. DIRECT immersion heater 
thermal cut-out has operated.

2. Check. Reset by pushing button. 

3. INDIRECT programmer set to 
Central Heating only.

3. Check. Set to a Domestic Hot Water 
programme.

4. INDIRECT boiler not working.

4. Check boiler operation. If fault is 
suspected consult boiler manufacturer's 
instructions.

5. INDIRECT thermal cut-out has 
operated.

5. Check. Reset by pushing button on cut-
out. Check operation of indirect 
thermostat.

6. INDIRECT motorised valve not 
connected correctly.

6. Check wiring and/or plumbing 
connections to motorised valve (see Fig. 8).

1. INTERMITTENTLY
Expansion Vessel charge pressure 
has reduced below 3.5bar.

1. See Maintenance section for re-charging 
procedure.

2. CONTINUALLY
a. Cold Water Combination Valve 
Pressure Reducer not working 
correctly.

2a. Check pressure from Cold Water 
Combination Valve. If greater than 3.5bar 
replace Pressure Reducer cartridge.

b. Expansion Valve seat damaged. 2b. Remove Expansion Valve cartridge. 

Check condition of seat. If necessary fit 
new Expansion Valve cartridge.

Water discharges from T&P 
Relief Valve

1. Thermal control failure NOTE 
water will be very hot.

1. Switch off power to immersion heater(s) 
and shut down boiler. DO NOT turn off 
water supply. When discharge stops  check 
all thermal controls, replace if faulty.

Milky water

1. Oxygenated water.

1. Water from a pressurised system releases 
oxygen bubbles when flowing. The 
milkiness will disappear after a short while.

No hot water flow

Water from hot taps is cold

Water discharges from 
Expansion Valve

 


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16

GUARANTEE

The Pullin Evolution Solar stainless steel vessel carries a full

10 year parts guarantee against faulty manufacture or ma-

terials provided that:

• It has been correctly installed as per the instructions con-

tained in the instruction manual and all relevant Codes of

Practice and Regulations in force at the time of installation.

• It has not been modified in any way, other than by Pullin.

• It has not been frost damaged.

• It has only been used for the storage of potable water.

• It has not been tampered with or been subjected to mis-

use or neglect.

• Within 60 days of installation the user completes and re-

turns the certificate supplied along with the proof of pur-

chase to register the product.

• It has been installed in the United Kingdom.

The expansion vessel is guaranteed for a period of 2 years

from the date of purchase. The Pullin Evolution Solar’s com-

ponents, immersion heater and thermal controls are guar-

anteed for a period of 2 years from the date of purchase.

Evidence of purchase and date of supply may be required.

The unit is not guaranteed against damage due to frost.

The guarantee is transferable. This guarantee does not af-

fect your statutory rights.

For the fast and efficient supply of spares please

contact:

interpart

Tel: 01926 405 405

SPARES STOCKISTS

The policy of Pullin is one of continuous product development and, as such, we reserve the right to change

specifications without notice.

TECHNICAL SUPPORT

For all technical support and service issues please

contact:

Pullin

Brooks House,

Coventry Road,

Warwick

CV34 4LL

Tel: 08706 060933

 


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17

17

The code of practice for the installation, commissioning & servicing of mains

pressure hot water storage

Installation,

Commissioning and

Service Record

CUSTOMER DETAILS

NAME

ADDRESS

TELEPHONE NUMBER

IMPORTANT

1. Please keep this log book in a safe place for future reference.

2. This Log Book is to be completed in full by the competent person(s) who

commissioned the equipment and then handed to the customer. When this is

done, the Log Book is a commissioning certificate that can be accepted as

evidence of compliance with the appropriate Building Regulations.

3. Failure to install and commission this appliance to the manufacturer’s

instructions may invalidate the warranty.

The above does not affect your statutory rights.

 


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18

INSTALLER & COMMISSIONING ENGINEER DETAILS

INSTALLER DETAILS

COMPANY NAME:

ADDRESS:

INSTALLER NAME:

TELEPHONE NUMBER:

DATE:

REGISTERED OPERATIVE ID CARD NO. (IF APPLICABLE):

COMMISSIONING ENGINEER (IF DIFFERENT)

COMPANY NAME:

ADDRESS:

ENGINEER NAME:

TELEPHONE NUMBER:

DATE:

REGISTERED OPERATIVE ID CARD NO. (IF APPLICABLE):

APPLIANCE & TIME CONTROL DETAILS

CAPACITY:

LITRES

SERIAL NUMBER:

GUARANTEE CODE:

TYPE:

(DIRECT/INDIRECT)

TIME CONTROL:

PROGRAMMER

TIME SWITCH

 


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19

19

COMMISSIONING PROCEDURE INFORMATION

BOILER PRIMARY SETTINGS (INDIRECT HEATING ONLY) ALL BOILERS

IS THE PRIMARY A SEALED OR OPEN VENTED SYSTEM?

SEALED

OPEN

WHAT IS THE BOILER FLOW TEMPERATURE?

°C

ALL MAINS PRESSURISED SYSTEMS

WHAT IS INCOMING STATIC COLD WATER PRESSURE AT THE INLET TO THE

PRESSURE REDUCING VALVE?

BAR

HAS STRAINER (IF FITTED) BEEN CLEANED OF INSTALLATION DEBRIS?

YES

NO

HAS A WATER SCALE REDUCER BEEN FITTED?

YES

NO

WHAT TYPE OF SCALE REDUCER HAS BEEN FITTED?

UNVENTED SYSTEMS ONLY

ARE COMBINED TEMPERATURE & PRESSURE RELIEF AND EXPANSION VESSEL FITTED AND DISCHARGE

TESTED?

YES

NO

IS PRIMARY ENERGY SOURCE CUT OUT FITTED (NORMALLY 2-PORT VALVE)?

YES

NO

WHAT IS THE PRESSURE REDUCING VALVE SETTING (IF FITTED)?

BAR

WHERE IS OPERATING PRESSURE REDUCING VALVE SITUATED?

HAS THE EXPANSION VESSEL OR INTERNAL AIR SPACE BEEN CHECKED?

YES

NO

WHAT IS THE HOT WATER TEMPERATURE AT THE NEAREST OUTLET?

°C

ALL PRODUCTS

DOES THE HOT WATER SYSTEM COMPLY WITH THE APPROPRIATE BUILDING REGULATIONS?

YES

HAS THE SYSTEM BEEN INSTALLED AND COMMISSIONED IN ACCORDANCE WITH THE

MANUFACTURER’S INSTRUCTIONS?

YES

HAVE YOU DEMONSTRATED THE OPERATION OF THE SYSTEM CONTROLS TO

THE CUSTOMER?

YES

HAVE YOU LEFT ALL THE MANUFACTURER’S LITERATURE WITH THE CUSTOMER?

YES

COMPENTENT PERSON’S SIGNATURE

CUSTOMER’S SIGNATURE

(To confirm demonstrations of equipment and

receipt of appliance instructions)

 


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20

SERVICE INTERVAL RECORD

It is recommended that your hot water system is serviced regularly and that your service engineer completes

the appropriate Service Interval Record below.

SERVICE PROVIDER

Before completing the appropriate Service Interval Record below, please ensure you have carried out the

service as described in the manufacturer’s instructions and in compliance with all relevant codes of practice.

SERVICE 1

DATE:

ENGINEER NAME

COMPANY NAME

TEL NO.

COMMENTS

SIGNATURE

SERVICE 2

DATE:

ENGINEER NAME

COMPANY NAME

TEL NO.

COMMENTS

SIGNATURE

SERVICE 3

DATE:

ENGINEER NAME

COMPANY NAME

TEL NO.

COMMENTS

SIGNATURE

SERVICE 5

DATE:

ENGINEER NAME

COMPANY NAME

TEL NO.

COMMENTS

SIGNATURE

SERVICE 9

DATE:

ENGINEER NAME

COMPANY NAME

TEL NO.

COMMENTS

SIGNATURE

SERVICE 7

DATE:

ENGINEER NAME

COMPANY NAME

TEL NO.

COMMENTS

SIGNATURE

SERVICE 4

DATE:

ENGINEER NAME

COMPANY NAME

TEL NO.

COMMENTS

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