Installation Manual for Lochinvar models including: SSCF130-305, STCF130-305, SIVS-HP150-500, SSCF130-305 Stainless Water Heaters, SSCF130-305, Stainless Water Heaters, Water Heaters, Heaters
Squire stainless Water heaters
Installation, commissioning, and maintenance instructions
Models: SSCF130-305 STCF130-305 SIVS-HP150-500
Warning: Read and fully understand this manual before attempting to install this Water heater. It can cause personal injury and damage to the Water heater when you do not read the manual and/or do not obey the instructions.
Document Control
Article
Language
Squire stainless Residential range Installation Instructions English
Version V1
Date 20-May-24
Modified by S.Addis
1
Contents
1.0 INTRODUCTION ......................................................................................................................................................................................................................................................................................................3 1.1 GENERAL DESCRIPTION OF SAFETY SYMBOLS USED .....................................................................................................................................................................................................................3
2.0 SAFETY GUIDELINES ............................................................................................................................................................................................................................................................................................4 2.1 DIMENSIONAL DRAWINGS..........................................................................................................................................................................................................................................................................5
3.0 GENERAL REQUIREMENTS ................................................................................................................................................................................................................................................................................9 3.1 RELATED DOCUMENTS ...............................................................................................................................................................................................................................................................................9
4.0 WATER QUALITY ....................................................................................................................................................................................................................................................................................................9 5.0 WATER CONNECTIONS......................................................................................................................................................................................................................................................................................10
5.1 GENERAL .......................................................................................................................................................................................................................................................................................................10 5.2 UN-VENTED SYSTEM..................................................................................................................................................................................................................................................................................10 5.3 DE-STRATIFICATION...................................................................................................................................................................................................................................................................................15 6.0 COMMISSIONING AND TESTING......................................................................................................................................................................................................................................................................15 6.1 ELECTRICAL INSTALLATION ....................................................................................................................................................................................................................................................................15 6.2 WATER CONNECTION ................................................................................................................................................................................................................................................................................15 6.3 PRIMARY HEAT SOURCE ..........................................................................................................................................................................................................................................................................15 7.0 MAINTENANCE......................................................................................................................................................................................................................................................................................................16 7.1 GENERAL .......................................................................................................................................................................................................................................................................................................16 7.2 DRAINING THE WATER SYSTEM .............................................................................................................................................................................................................................................................16 7.3 RE-FILLING THE SYSTEM ..........................................................................................................................................................................................................................................................................16 7.4 OTHER CHECKS...........................................................................................................................................................................................................................................................................................16 8.0 USER INSTRUCTIONS.........................................................................................................................................................................................................................................................................................17 9.0 APPENDIX 1 TECHNICAL DATA TABLES SSCF130-305 .............................................................................................................................................................................................................................18 10.0 APPENDIX 2 TECHNCIAL DATA TABLES STCF130-305 .............................................................................................................................................................................................................................18 11.0 APPENDIX 3 TECHNCIAL DATA TABLES SIVS-HP150-500........................................................................................................................................................................................................................19 12.0 APPENDIX 4 TECHNCIAL DATA TABLES SIT-SDT300-450 ........................................................................................................................................................................................................................20 13.0 APPENDIX 5 ErP SPECIFICATION DATA SHEETS .......................................................................................................................................................................................................................................21 14.0 APPENDIX 6 WARRANT Y ...................................................................................................................................................................................................................................................................................22
2
1.0 INTRODUCTION Lochinvar Squire stainless steel vessels are designed to be used as an indirect vessel in conjunction with a solar thermal system or with a circulating condensing Boiler.
Only models SIVS-HP are suitable for direct connection to an air source heat pump
There are three versions of the storage vessels. The SSCF range are stainless steel vessels suitable for systems with a maximum working pressure of up to 6 bar featuring a single indirect coil and two 3kW immersion heaters. The STCF range of stainless steel vessels are suitable for systems with a maximum working pressure of up to 6 bar featuring two coils. The lower coil is suitable for a Solar Thermal System or other LZC technology, to be used in conjunction with a boiler.
1.1 GENERAL DESCRIPTION OF SAFETY SYMBOLS USED
BANNED
A black symbol inside a red circle with a red diagonal indicates an action that should not be performed
WARNING
A black symbol added to a yellow triangle with black edges indicates danger
ACTION REQUIRED
A white symbol inserted in a blue circle indicates an action that must be taken to avoid risk
Lochinvar Squire stainless steel vessels are fitted with sensor pockets for monitoring the temperature via the solar control and/or BMS. Each vessel is also equipped with a twin thermostat (2 on STCF models) and a suitably sized unvented kit can.
· All installations must conform to the relevant Building Regulations. Health & Safety requirements must also be considered when installing any equipment. Failure to comply with the above may lead to prosecution.
· If the equipment is to be connected to an unvented (pressurised) system, care must be taken to ensure all extra safety requirements are satisfied should a high or low-pressure condition occur in the system.
3
2.0 SAFETY GUIDELINES Carefully read all the instructions before commencing installation. Keep these instructions near the water heater for quick reference. This equipment must be installed by a competent person. All installations must conform to the relevant Building Regulations. Health & Safety requirements must also be considered when installing any equipment. Failure to comply with the above may lead to prosecution. Commissioning, maintenance, and repair must be done by a skilled installer/engineer, according to all applicable standards and regulations.
Lochinvar Limited is not liable for any damage caused by inaccurately following these mounting instructions. Only original parts may be used when carrying out any repair or service work. This appliance is not intended for use by persons (including children) with reduced physical, sensory, or mental capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety. Children should be supervised to ensure that they do not play with the appliance.
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2.1 DIMENSIONAL DRAWINGS 2.1.1 SSCF130-305
Model SSCF130 SSCF150 SSCF175 SSCF215 SSCF255 SSCF305
A 957 1085 1242 1484 1752 2028
B
C
D
E
576
215
185
185
576
215
185
185
576
215
185
185
576
215
185
185
576
215
185
185
576
215
185
185
F 192.5 192.5 267.5 267.5 267.5 267.5
G
H
I
J
322
222
222
222
337
222
222
222
470
222
222
222
665
222
222
222
665
222
222
222
665
222
222
222
5
2.1.2 STCF130-305
Model STCF130 STCF150 STCF175 STCF215 STCF255 STCF305
A 957 1085 1242 1484 1752 2028
B
C
576 505
576 505
576 580
576 580
576 580
576 580
D 192.5 192.5 267.5 267.5 267.5 267.5
E
F
215 185
215 185
215 185
215 185
215 185
215 185
G 192.5 192.5 262.5 262.5 262.5 262.5
H
I
J
K
222 222 185 222
222 222 185 222
222 222 185 222
222 222 185 222
222 222 185 222
222 222 185 222
6
2.1.3 SIVS-HP150-500
Model SIVSHP-150 SIVSHP-175 SIVSHP-215 SIVSHP-250 SIVSHP-305 SIVSHP-400 SIVSHP-500
A 1085 1242 1485 1752 2028 1405 1690
B
C
D
E
575
182
225
182
575
182
225
182
575
182
225
182
575
182
225
182
575
182
225
182
750
228
262
228
750
228
262
228
7
2.1.4 SIT-SDT300-450
SDT Twin coil models
Model No.
SIT300 SIT450 SDT300 SDT450
Storage Capacity Litres 310 427 299 416
Hot Outlet mm 1765 1734 1765 1734
SIT Single coil models
A
B
C
D
E
F
G
H
mm
mm
mm
mm
mm
mm
mm
mm
1765
609
1568
-
711
235
83
1734
711
1530
-
806
235
83
1765
609
1568
1365
1022
711
235
83
1734
711
1530
1384
952
806
235
83
8
3.0 GENERAL REQUIREMENTS
The Lochinvar Squire stainless steel vessel has been designed to operate trouble free for many years. These instructions should be followed closely to obtain the maximum usage and efficiency of the equipment. PLEASE read the instructions fully before installing or using the appliance.
3.1 RELATED DOCUMENTS
The installation should follow the relevant guidance offered in the following documents. It is not practical to list all relevant information but emphasis is placed on the following documents, as failure to comply with the guidance given will almost certainly result in an unsatisfactory installation:
BS 6700: 1997
Design, installation, testing and maintenance of services supplying water for domestic use within buildings and their curtilages
BS 7074: 1989 1and 2
Application, selection and installation of expansion vessels and ancillary equipment for Parts sealed systems
BS 7671: 2008
Requirements for electrical installations, I.E.E. wiring regulations seventeenth edition
CP 342: Part 2 1974
Code of practice for centralised hot water supply-buildings other than dwellings
4.0 WATER QUALITY
Water supply quality may adversely affect the efficiency performance and longevity of Water Heaters and Hot Water systems. Hard water may cause the formation of limescale which will reduce operating efficiency and may cause early product failure. Please note the following: -
· Water Hardness should not exceed 205ppm CaCO3 and Total Dissolved Solids (TDS) of should not exceed 350ppm. If these values are exceeded a water treatment specialist should be consulted. Water Softeners and Water Conditioners may be considered, but whichever method is selected, it should be suitable for installation with Squire stainless indirect Water Heaters. A maintenance regime will also be required for such systems.
· High hot water temperature and high demand for hot water is likely to cause quicker limescale formation.
The formation of limescale or other solids can cause a blockage within the heat exchanger, which in turn may cause premature failure. Such instances are not regarded as defects in manufacture and will not be covered under the product warranty
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5.0 WATER CONNECTIONS
5.1 GENERAL
1.
Circulating pipe work should be insulated; cisterns, expansion vessels and pipe work situated in areas exposed to
freezing conditions should also be insulated.
2.
Drain valves must be located in accessible positions that will permit draining of the entire system.
3.
Ideally, individual valves should be fitted to each unit to enable isolation from the system.
5.2 UN-VENTED SYSTEM
It is the law that unvented hot water systems be installed by an approved installer.
If the Lochinvar Squire stainless steel vessel is to be used in an unvented arrangement the system should follow the guidance given in BS6700 and must comply with The Building Regulations: Part G3 in England and Wales, P5 in Northern Ireland and P3 in Scotland. A kit of components that have been suitably sized for the unvented or boosted operation of the appliance is available from Lochinvar Limited. If you require a pipe work schematic for multiple appliance/storage vessel combinations, please contact Lochinvar Limited.
Safety must be provided on indirectly heater systems were the energy input must be restricted by control and/or other means. On unvented hot water systems were the heat source is from the primary circuit of a boiler, a two port motorised valve and high limit stat must be fitted which causes the valve to close to cut off the energy source.
Lochinvar Ltd reserves the right to change specifications without prior notice. All necessary additional valves and fittings to be determined by those other than Lochinvar Ltd. Lochinvar Ltd may provide technical advice and guidance to assist with best practice, optimisation and installation of Lochinvar products; however, we will not be liable for any duties as Designers under Construction (Design and Management Regulations 2015). In all cases where information is provided, the customer must assess and manage risks associated with the technical information and advice provided.
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IV BUILDING
FLOW
COLD FEED
BUILDING RETURN
IV
PRV
NRV EV
TD
LSV
EXV DV
*EXV
IV BRP IV
NRV
TPRV TD
IV = ISOLATION VALVE
PRV = PRESSURE REDUCING VALVE
NRV = NON-RETURN VALVE
EV = EXPANSION VALVE
TD = TUNDISH
LSV = LOCKSHIELD VALVE
EXV = EXPANSION VESSEL
TPRV = TEMPERATURE & PRESSURE RELIEF VALVE
DV = DRAIN VALVE
BRP = BUILDING RETURN PUMP
PCP = PRIMARY CIRCULATING PUMP
T
= TEMPERATURE SENSOR
* = OPTIONAL EXPANSION VESSEL IF SYSTEM VOLUME REQUIRES
T
2 PV
P.P 230V
EV
IV TD IV PCP IV
CONDENSING CIRCULATING
BOILER
IV
DV
PG
AAV DCV
IV
EXV
5.2.1 TYPICAL SCHEMATIC SSCF INDIRECT WATER HEATER WITH BOILER
IV = ISOLATION VALVE PRV = PRESSURE REDUCING VALVE NRV = NON-RETURN VALVE EV = EXPANSION VALVE TD = TUNDISH LSV = LOCKSHIELD VALVE EXV = EXPANSION VESSEL TPRV = TEMPERATURE & PRESSURE RELIEF VALVE DV = DRAIN VALVE BRP = BUILDING RETURN PUMP PCP = PRIMARY CIRCULATING PUMP T = TEMPERATURE SENSOR
* = OPTIONAL EXPANSION VESSEL IF SYSTEM VOLUME REQUIRES
SOLAR PRE HEAT
NRV
COLD FEED
TPRV
P.P 230V
SOLAR CONTOLLER
TD
IV
PRV
NRV EV
TD
LSV
EXV DV
*EXV
T 2 PV
DV
SOLAR ARRAY PUMP STATION
LSV
5.2.2 TYPICAL SCHEMATIC SSCF INDIRECT WATER HEATER USED AS A SOLAR PRE-HEAT
TEMPORARY FLEXIBLE FILLING CONNECTION
T
11
TEMPORARY FLEXIBLE FILLING
CONNECTION
PG
IV
DCV AAV
EXV
BUILDING RETURN
T SOLAR ARRAY
IV = ISOLATION VALVE PRV = PRESSURE REDUCING VALVE NRV = NON-RETURN VALVE EV = EXPANSION VALVE TD = TUNDISH LSV = LOCKSHIELD VALVE EXV = EXPANSION VESSEL TPRV = TEMPERATURE & PRESSURE RELIEF VALVE DV = DRAIN VALVE BRP = BUILDING RETURN PUMP PCP = PRIMARY CIRCULATING PUMP PP = PASTEURIZATION PUMP T = TEMPERATURE SENSOR AAV = AUTOMATIC AIR VENT AS = AIR SEPARATOR PG = PRESSURE GAUGE DA = DUAL AQUASTAT B = BALANCING VALVE DCV = DOUBLE CHECK VALVE
* = OPTIONAL EXPANSION VESSEL IF SYSTEM VOLUME REQUIRES
CONDENSING CIRCULATING
BOILER
EV TD
IV IV PCP IV
IV HOT WATER
OUTLET
IV PP IV NRV
TPRV TD
IV BRP IV
NRV
T 2 PV
P.P 230V
T 2 PV
P.P 230V
SOLAR CONTOLLER
PUMP STATION
LSV
NRV PRV
IV
EV
COLD FEED
5.2.1
EXV TD
LSV DV
*EXV
TYPICAL SCHEMATIC STCF INDIRECT WATER HEATER USED AS A SOLAR PRE-HEAT WITH BOILER
5.2.2 WHEN INSTALLING THE SIVS-HP PLEASE CONTACT LOCHINVAR TECHNICAL SUPPORT AS EACH PROJECT WILL REQUIRE
INDIVIDUAL CONSIDERATION
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5.2.3 TEMPERATURE AND PRESSURE RELIEF VALVE
A temperature and pressure relief valve is factory fitted.
The storage vessel relief valve connection should not be used for any other purpose.
5.2.4 RELIEF VALVE DISCHARGE PIPEWORK
It is important that any discharge water does not collect in the discharge pipework and can run freely to the tundish. The tundish should be mounted in a vertical and visible position located in the same space as the unvented hot water storage system and be fitted as close as possible and within 600mm of the safety device e.g. the temperature relief valve.
The discharge pipe from the tundish should terminate in a safe place where there is no risk to persons in the vicinity of the discharge, be of metal or other material that has been demonstrated to be capable of safely withstanding temperatures of the water discharged and is clearly and permanently marked to identify the product and performance standard, 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.
An alternative approach for sizing discharge pipes would be to follow BS6700 Specification for design installation, testing and maintenance of services supplying water for domestic use within buildings and their curtilages.
b) Have a vertical section of pipe at least 300mm long, below the tundish before any elbows or bends in the pipe work.
c) Be installed with a continuous fall of at least 1 in 200. d) Have discharges visible at both the tundish and the final point of discharge but where this is not possible or is
practically difficult there should be clear visibility at one or other of these locations.
Examples of acceptable discharge arrangements are:
I. Ideally below the fixed grating and above the water seal in a trapped gulley. II. Downward discharges at a low level; i.e. up to 100mm above external surfaces such as car parks, hard standings,
grassed areas etc. are acceptable providing that where children play or otherwise come into contact with discharges, a wire cage or similar guard is positioned to prevent contact whilst maintaining visibility. III. Discharges at a 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 temperature discharges of water and 3m from any plastic guttering systems 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 installation can be traced reasonably easily. The single common discharge pipe should be at least one pipe size larger than the largest individual discharge pipe to be connected. If unvented hot water storage systems are installed where discharges from safety devices may not be apparent 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.
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SAFETY DEVICE (e.g. TEMPERATURE RELIEF VALVE)
METAL DISCHARGE PIPE (D1) FROM TEMPERATURE RELIEF VALVE TO TUNDISH
600mm MAXIMUM
TUNDISH
300mm MINIMUM
DISCHARGE PIPE (D2) FROM TUNDISH, WITH CONTINUOUS FALL
DISCHARGE IDEALLY BELOW FIXED GRATING
FIXED GRATING
TRAPPED GULLY
5.2.5 RELIEF VALVE DISCHARGE PIPEWORK
5.2.6 EXPANSION VESSEL SIZING
The following information is based on an inlet pressure of 3.5 bar. If a different inlet pressure is to be used, please consult
BS6700.
V V = S V * e
0.45
Where:
VV =
Vessel Volume
SV =
System Volume
e
=
Coefficient of Expansion (See Table Below)
Stored Temp. e
Stored Temp. e
°C
30
35
40
45
50
0.005
0.006
0.008
0.01
0.012
°C
65
70
75
80
82
0.02
0.023
0.026
0.03
0.031
5.2.7 COEFFICIENT OF EXPANSION OF WATER AT 3.5 BAR INLET PRESSURE
5.2.8 SOLAR EXPANSION VESSEL SIZING
Any solar expansion vessels should be sized, installed, and commissioned as per solar instructions.
55 0.015
85 0.033
60 0.017
90 0.037
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5.3 DE-STRATIFICATION 5.3.1 GENERAL
The De-stratification Pump Kit works by using a pump to circulate water from the top of the vessel to the bottom of the vessel. This action ensures that the water held in the unit is maintained at a consistent temperature throughout. By achieving a uniformed stored water temperature of at least 60°C, the risk of any bacterial contamination is virtually eliminated. Systems that have a building loop incorporated onto the vessel may not require a de-stratification kit, provided the circulation around the building from the top of the vessel returns to the bottom. This should provide sufficient mixing.
5.3.2 SOLAR THERMAL REQUIREMENTS Lochinvar has developed this kit to meet the stringent recommendations of both the HSE Approved Code of Practice L8 and Department of Health Memorandum HTM 04-01 relating to the control of legionella within solar thermal installations. 6.0 COMMISSIONING AND TESTING
6.1 ELECTRICAL INSTALLATION Any ancillary item that requires an electrical supply should be installed and commissioned as per instructions.
6.2 WATER CONNECTION For design see Section 5: Water connections.
The system should be thoroughly flushed out with cold water without any circulating pumps in position. Ensure all the valves are open. If a building return pump is to be fitted, it should be fitted before the system is filled and air locks cleared. Check the system for leaks and repair as necessary. If the system is configured in an unvented arrangement, check the expansion vessel cushion pressure. 6.3 PRIMARY HEAT SOURCE The primary heat source operating in conjunction with the indirect water heater should be installed and commissioned in accordance with the relevant ICM Instructions provided.
15
7.0 MAINTENANCE 7.1 GENERAL
Regular servicing is recommended, preferably by a Lochinvar appointed person, to ensure trouble free operation. Even if a maintenance schedule is determined to be less than annually, it is important that all controls and safety features are checked for correct operation on an annual basis.
7.2 DRAINING THE WATER SYSTEM Maintenance and service procedures for the Squire may require draining the water heater. The water heater must also be drained if it is to be shut down and exposed to freezing temperatures.
1. Turn off the water heater if applicable. 2. Connect a hose to the system drain valve. 3. Locate hose's discharge in an area where hot water will not cause any damage or injury. 4. Close the cold-water inlet valve to water heater system. 5. Open a nearby hot water outlet to vent the system. 6. Open the drain valve. 7. If the vessel is being drained for an extended shutdown, it is suggested the drain valve be left open during this
period. 7.3 RE-FILLING THE SYSTEM 1. Close the drain valve. 2. Open a hot water fixture to allow air to escape. 3. Open the cold-water supply to water heater and allow the vessel to fill. 4. Check for water leakage. 7.4 OTHER CHECKS
7.4.1 RELIEF VALVE At least once a year, the temperature and pressure relief valve and safety valve should be checked to ensure that they are in operating condition. To check each valve, lift the lever or turn the screw cap at the end of the valve several times. Th e valve should operate freely and seat properly. If water does not flow, remove, and inspect for obstructions or corrosion. Replace with a new valve of the recommended size as necessary.
16
8.0 USER INSTRUCTIONS Your Squire Stainless unvented hot water cylinder has been designed to give many years of trouble free service and is made from hygienic, high grade stainless steel. Where applicable, it includes a 3kW electric immersion heater which heats the water to 60°C once pre-heating of the solar system is completed (SSCF models for Solar use only). The flow temperature of the hot water can be set to your requirements on the immersion heater (ideally 60°C maximum). Higher temperatures can cause tripping of the high limit thermostat and introduce more energy loss from the cylinder. When a hot tap is turned on there may be a short surge of water, this is quite normal with unvented systems and does not mean there is a fault. When you first fill a basin the water may sometimes appear milky. This is due to very tiny air bubbles in the water which will clear very quickly.
Warning: if cold/warm water exits from the temperature and pressure relief valve (TPV) or from the pressure relief valve (PRV) call your installer. If very hot water exits from either valve switch off the heat source immediately and isolate the electricity supply to the cylinder and separate heat source. The solar system is configured to heat the water to its maximum economic temperature which may vary with ambient temperature and weather conditions. The immersion may be programmed to operate during fixed periods of the day or night. If the hot water runs cool it may be necessary to manually switch on the immersion to heat the water please see the relevant instructions for your alternative energy device.
17
9.0 APPENDIX 1 TECHNICAL DATA TABLES SSCF130-305
Description General Storage volume Heat loss Coil size Coil rating flowrate pressure drop Reheat time Immersion heater Connections Cold inlet Hot outlet Coil Immersion heater
Unit
Litres kW/24 hours m2 kW l/sec bar mins kW
mm mm mm Inch BSP
SSCF130
130 1.22 0.75 20 0.33 0.3 23 2 x 3
22 22 22 1¾
SSCF150
150 1.36 0.75 20 0.33 0.3 26 2 x 3
22 22 22 1¾
SSCF175
175 1.53 1.1 29 0.33 0.3 21 2 x 3
22 22 22 1¾
SSCF215
215 1.72 1.1 29 0.33 0.3 26 2 x 3
22 22 22 1¾
SSCF255
255 1.87 1.1 29 0.33 0.3 31 2 x 3
22 22 22 1¾
SSCF305
305 2.05 1.1 29 0.33 0.3 37 2 x 3
22 22 22 1¾
10.0 APPENDIX 2 TECHNCIAL DATA TABLES STCF130-305
Description
Unit
General
Storage volume
Litres
Heat loss
kW/24 hours
Top Coil size
m2
Top Coil rating
kW
Top Coil flowrate
l/sec
Top Coil Pressure Drop bar
Bottom coil size
m2
Bottom Coil rating
kW
flowrate
l/sec
pressure drop
bar
Reheat time*
mins
Immersion heater
kW
Connections
Cold inlet
mm
Hot outlet
mm
Coil
mm
Immersion heater
Inch BSP
*Using top coil only with shunt pump
STCF130
130 1.22 0.54 14.6 0.33 0.3 0.75 20 0.33 0.3 31 1 x 3
22 22 22 1¾
STCF150
150 1.36 0.54 14.6 0.33 0.3 0.75 20 0.33 0.3 36 1 x 3
22 22 22 1¾
STCF175
175 1.53 0.75 20 0.33 0.3 1.1 29 0.33 0.3 31 1 x 3
22 22 22 1¾
STCF215
215 1.72 0.75 20 0.33 0.3 1.1 29 0.33 0.3 37 1 x 3
22 22 22 1¾
STCF255
255 1.87 0.75 20 0.33 0.3 1.1 29 0.33 0.3 44 1 x 3
22 22 22 1¾
STCF305
305 2.05 0.75 20 0.33 0.3 1.1 29 0.33 0.3 53 1 x 3
22 22 22 1¾
18
11.0 APPENDIX 3 TECHNCIAL DATA TABLES SIVS-HP150-500
Description General Storage volume Heat loss Coil size Coil rating flowrate pressure drop Reheat time Immersion heater Connections Cold inlet Hot outlet Coil Immersion heater
Unit
Litres kW/24 hours m2 kW l/sec bar mins kW
mm mm mm Inch BSP
SIVSHP-150 SIVSHP-175 SIVSHP-215 SIVSHP-250 SIVSHP-305
150
175
215
255
305
1.36
1.53
1.72
1.87
2.05
2
2
3
3
3
7
7
10
10
10
0.45
0.45
0.4
0.4
0.4
0.3
0.3
0.3
0.3
0.3
75
87
75
89
106
1 x 3
1 x 3
1 x 3
1 x 3
1 x 3
22
22
22
22
22
22
22
22
22
22
28
28
28
28
28
1¾
1¾
1¾
1¾
1¾
Description General Storage volume Heat loss Coil size Coil rating flowrate pressure drop Reheat time Immersion heater Connections Cold inlet Hot outlet Coil Immersion heater
Unit
Litres kW/24 hours m2 kW l/sec bar mins kW
mm mm Inch BSP Inch BSP
SIVSHP-400 SIVSHP-500
400
500
2.64
2.78
4
4
13
13
0.35
0.35
0.3
0.3
107
107
1 x 3
1 x 3
22
22
22
22
1"
1"
1¾
1¾
19
12.0 APPENDIX 4 TECHNCIAL DATA TABLES SIT-SDT300-450
Description General Storage volume Heat loss Coil size Coil rating flowrate pressure drop Reheat time Connections Cold inlet Hot outlet Coil Immersion heater
Unit
Litres kW/24 hours m2 kW l/sec bar mins
Inch BSP Inch BSP Inch BSP Inch BSP
SIT300 SIT450
310
427
0.62
0.85
1.25
2.05
34
56
0.41
0.68
0.1
0.14
32
27
1½
1½
1½
1½
1
1
2¼
2¼
Description
Unit
General
Storage volume
Litres
Heat loss
kW/24 hours
Top Coil size
m2
Top Coil rating
kW
Top Coil flowrate
l/sec
Top Coil pressure drop bar
Bottom coil size
m2
Bottom Coil rating
kW
flowrate
l/sec
pressure drop
bar
Reheat time*
mins
Connections
Cold inlet
Inch BSP
Hot outlet
Inch BSP
Coil
Inch BSP
Immersion heater
Inch BSP
*Using top coil only with shunt pump
SDT300 SDT450
299
416
0.6
0.83
1.25
2.05
34
56
0.41
0.68
0.1
0.14
0.85
1.5
23
40
0.28
1.5
0.1
0.1
32
27
1½
1½
1½
1½
1
1
2¼
2¼
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13.0 APPENDIX 5 ErP SPECIFICATION DATA SHEETS
Description Energy efficiency class Standing loss Storage volume
Unit
Watts Litres
SSCF130 B 51 130
SSCF150 C 57 150
Description Energy efficiency class Standing loss Storage volume
Unit
Watts Litres
STCF130 B 51 130
STCF150 C 57 150
SSCF175 C 64 175
STCF175 C 64 175
SSCF215 C 72 215
STCF215 C 72 215
SSCF255 C 78 255
STCF255 C 78 255
SSCF305 C 85
305
STCF305 C 85
305
Description Energy efficiency clas s Standing los s Storage volume
Unit
Wa tts Li tre s
SIVSHP-150 C 57 150
SIVSHP-175 C 64 175
SIVSHP-215 C 72 215
SIVSHP-250 C 78
255
SIVSHP-305 C 85
305
SIVSHP-400 C
110 400
SIVSHP-500 C 116 500
Description Energy efficiency class Standing loss Storage volume
Unit
Watts Litres
SIT300 B 57 310
SIT450 B 68 427
SDT300 B 57 299
SDT450 B 68 416
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14.0 APPENDIX 6 WARRANTY
See individual warranty sheet for each model for warranty duration and temperature limitations.
(1) General Warranty If within period shown on the individual warranty sheet of the invoice date of a water heater supplied by Lochinvar Ltd., following verification, and at the sole discretion of Lochinvar Ltd., the tank proves to be defective or fails to function correctly due to manufacturing and/or material defects, then Lochinvar Ltd. shall repair or replace this assembly or part. (2) Ancillary Options Any ancillary options purchased with the water heater are covered via a standard 12-month parts only warranty. This includes items such as unvented kit, thermostats, and immersion heaters. The warranty starts from the date of delivery. (3) Conditions for installation and use The warranty set out in articles 1 and 2 will apply solely under the following conditions:
a. The water heater is installed under strict adherence to Lochinvar Ltd. installation instructions for the specific model and must be in accordance with the relevant requirements of the Gas Safety Regulations, Building Regulations, I.E.E. Regulations, and th e byelaws of the local water undertaking.
b. The water heater remains installed at the original site of installation. c. The water heater is used exclusively with drinking water, which at all times can freely circulate (a separately installed hea t exchanger is mandatory
for heating saline water or corrosive water). d. The heat exchanger is safeguarded against harmful scaling and lime build-up by means of periodic maintenance. e. The water temperatures in the heater do not exceed the maximum setting as shown in the table above. f. The water pressure and/or heat load do not exceed the maximum values stated on the water heater rating plate. g. The water heater is installed in a non-corrosive atmosphere or environment. h. The water heater is connected to a protected cold supply arrangement, which is: approved by the relevant authority; with suff icient capacity for
this purpose; supplying a pressure no greater than the working pressure stated on the water heater; and where applicable by a likewise approved temperature and pressure relief valve, fitted in accordance with installation instructions of Lochinvar Ltd. applying to the specific model of water heater, and further in compliance with Building Regulations, local authority installation byelaws and the Water Supply (Water Fittings) Regulations 1999. (4) Exclusions #Service parts and consumables are not included within the above warranty period, this includes (but is not limited to) any p art identified within the Installation manual which should be changed as part of the service regime for the appliance. These parts have a 12-month warranty from the date of commissioning or from the date of delivery to site. The warranty set out in articles 1 and 2 will not apply in the event of: a. damage to the water heater caused by an external factor. b. misuse, neglect (including frost damage), modification and incorrect and/or unauthorized use of the water heater. c. contaminants or other substances having been allowed to enter the heat exchanger. d. any attempts at repair to a defective water heater other than by an approved service engineer. (5) Scope of the warranty The obligations of Lochinvar Ltd. pursuant to the specified warranty are limited to free delivery from the warehouse of the r eplacement assemblies, parts, or water heater, respectively. Labour, installation, and any other costs associated with the replacement will not be accepted by Lochinvar Ltd. Claims A claim on grounds of the specified warranty must be submitted to the dealer from whom the water heater was purchased, or to another authorized dealer of Lochinvar Ltd. Inspection of the water heater as referred to in articles 1 and 2 shall take place in o ne of the laboratories of Lochinvar Ltd. Obligations of Lochinvar Ltd. Lochinvar Ltd. grants no other warranty or guarantee over its water heaters nor the (assemblies or parts of) water heaters su pplied for replacement, other than the warranty expressly set out in these conditions. Under the terms of the supplied warranty, Lo chinvar Ltd. is not liable for damage to persons or property caused by (assemblies or parts) of a (replacement) water heater that it has supplied.
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Lochinvar Squire Indirect Water Heater Installation and Operation Manual Comprehensive guide for the installation and operation of Lochinvar Squire Stainless Steel Indirect Water Heaters, models SIT030 through SIT119. Covers safety precautions, installation procedures, piping diagrams, wiring, start-up, maintenance, and performance data.
Lochinvar EcoForce++ High Efficiency Gas Fired Condensing Water Heaters: Installation, Commissioning, and Maintenance Instructions This document provides comprehensive installation, commissioning, and maintenance instructions for the Lochinvar EcoForce++ range of high-efficiency gas-fired condensing water heaters. It details technical specifications, safety requirements, flue system guidelines, electrical connections, troubleshooting procedures, and maintenance schedules for models EF+35/150+, EF+35/230+, and EF+55/230+.
