Lochinvar SIVS 100 G CE Guide

Installation, Commissioning,
User & Maintenance Instructions
LV 312751 | June 2022
0312751 R4.1 / 2622 - Changes Reserved
Models:
SIVS 100 G CE
SIVS 110 G CE
SIVS 130 G CE
SIVS 165 G CE
SIVS 220 G CE
Squire Indirect Water
Heater with
Single Coil

These instructions must be read and understood before installing, commissioning, operating
or maintaining the equipment.
IMPORTANT INFORMATION
!

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0312751_SIVS_100-220_UK_V4.1, 2022-06-27
Read this manual
carefully
Trademarks
Liability
More information
Warning
Read this manual carefully before starting the installation of the indirect water heater.
Failure to read the manual and to follow the printed instructions may lead to personal
injury and damage to the indirect water heater.
Copyright © 2022
All rights reserved.
Nothing from this publication may be copied, reproduced and/or published by means of
printing, photocopying or by whatsoever means, without the prior written approval of the
supplier.
The supplier reserves the right to modify specifications stated in this manual.
Any brand names mentioned in this manual are registered trademarks of their respective
owners.
The supplier accepts no liability for claims from third parties arising from unauthorised
use, use other than that stated in this manual, and use other than in accordance with the
General Conditions registered at the Chamber of Commerce.
Refer further to the General Conditions. These are available on request, free of charge.
Although considerable care has been taken to ensure a correct and suitably
comprehensive description of all relevant components, the manual may nonetheless
contain errors and inaccuracies. Should you detect any errors or inaccuracies in the
manual, we would be grateful if you would inform us. This helps us to further improve our
documentation.
If you have any comments or queries concerning specific aspects related to the indirect
water heater, then please do not hesitate to contact the supplier.
In the event of problems with your water supply connections, please contact the supplier
and/or installation engineer of your installation.

4 Installation, Commissioning, User & Maintenance Instructions

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0312751_SIVS_100-220_UK_V4.1, 2022-06-27
Table of contents
1
1.1
1.2
1.3
1.4
1.5
1.6
2
2.1
2.2
3
3.1
3.2
4
4.1
4.2
5
Technical specifications .............................................................................................. 7
Floor load ....................................................................................................................... 7
Working clearance .......................................................................................................... 7
Packaging ....................................................................................................................... 7
Disposal .......................................................................................................................... 7
General specifications .................................................................................................... 7
Dimensions ..................................................................................................................... 8
Installation ................................................................................................................... 11
Installation diagram ...................................................................................................... 11
Water connections ........................................................................................................ 11
Filling and Draining .................................................................................................... 13
Filling ............................................................................................................................ 13
Draining ........................................................................................................................ 14
Maintenance ................................................................................................................ 15
Preparation for maintenance ........................................................................................ 15
Water-side maintenance ............................................................................................... 15
Warranty ...................................................................................................................... 17

6 Installation, Commissioning, User & Maintenance Instructions

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0312751_SIVS_100-220_UK_V4.1, 2022-06-27
1 Technical specifications
1.1 Floor load
1.2 Working clearance
1.3 Packaging
1.4 Disposal
Allow for the indirect water heaters weight and the maximum floor load; refer to the table
(1.5 "General specifications").
For access to the indirect water heater, it is recommended that the following clearances
are observed:
•around the anode connection: 100 cm.
•around the vessel: 50 cm.
•top of the vessel: 50 cm
Note
When installing the indirect water heater, be aware that any leakage from the tank and/or
connections can cause damage to the immediate environment or floors below the level
of the boiler room. If this is the case, the indirect water heater should be installed above
a waste water drain or in a suitable metal leak tray.
The leak tray must have an appropriate waste water drain and must be at least 5 cm
deep with a length and width at least 5 cm greater than the diameter of the indirect water
heater.
The packaging prevents damage to the appliance during transport. The
packaging material chosen is environmentally friendly, recyclable and
relatively easy to dispose of in an environmentally aware way.
Old end-of-life appliances contain materials that need to be recycled. When disposing of
old devices that have reached the end of their service life, you should
take account of local legislation relating to waste disposal.
You must therefore never dispose of your old appliance together with
regular waste, but should and it into a municipal waste collection depot for
electrical and electronic equipment. Ask your dealer/installation engineer
for advice if necessary. The old appliance must be stored out of reach of
children.
1.5 General
specifications
Description Unit SIVS 100 SIVS 110 SIVS 130 SIVS 165 SIVS 220
Storage Capacity liters 390 480 650 730 1020
Empty Weight kg 139 180 241 254 336
Max. Floor Load kg 529 660 891 984 1356
Energy Efficiency Class (Energy Label) - C C - - -
Heat Loss W 100 104 126 126 146
Max. Working Pressure Tank kPa (bar) 1000 (10) 1000 (10) 1000 (10) 1000 (10) 1000 (10)
Max. Water Temperature ºC 95 95 95 95 95
Max. Operating Pressure (Vented) kPa (bar) 800 (8) 800 (8) 800 (8) 800 (8) 800 (8)
Max. Operating Pressure (Unvented) kPa (bar) 550 (5.5) 550 (5.5) 550 (5.5) 550 (5.5) 550 (5.5)
Anodes - 1 1 1 1 1

8 Installation, Commissioning, User & Maintenance Instructions
Description Unit SIVS 100 SIVS 110 SIVS 130 SIVS 165 SIVS 220
Heat Exchanger
Output kW 79 102 106 114 147
Max. Operating Pressure kPa (bar) 1600 (16) 1600 (16) 1600 (16) 1600 (16) 1600 (16)
Max. Temperature of used Liquid ºC 110 110 110 110 110
Primary Flow 80/60ºC l/h 3354 4300 4472 4816 6235
Pressure Loss kPa (mbar) 24.4 (244) 48.9 (489) 10.4 (104) 12.8 (128) 25.9 (259)
Heat Exchanging Surface m2 2.45 3.11 3.45 3.72 4.82
1.6 Dimensions
Unit SIVS 100 SIVS 110 SIVS 130 SIVS 165 SIVS 220
A Total height mm 1710 2045 1840 2035 2005
D Diameter (without insulation) mm 600 600 750 750 900
Diameter (with insulation) mm 740 760 910 930 1100
G Height heat exchanger outlet mm 260 260 310 310 350
H Height heat exchanger inlet mm 1015 1205 1150 1210 1310
M Height cold water inlet mm 70 70 85 85 95
N Height warm water outlet mm 1655 1995 1805 2000 1965
P Height inspection opening mm 330 330 420 420 450
R Height connection circulation mm 1100 1290 1240 1300 1400
S Height immersion well/temp. sensor mm 500 500 655 655 705
T Height T&P connection mm 1365 1700 1480 1675 1605
1 Connection cold water inlet - R 1½" R 1½" R 1½" R 1½" R 1½"
2 Connection warm water outlet - R 1½" R 1½" R 1½" R 1½" R 1½"
3 Connection heat exchanger outlet - Rp 1" Rp 1" Rp 1¼" Rp 1¼" Rp 1¼"
4 Connection heat exchanger inlet - Rp 1" Rp 1" Rp 1¼" Rp 1¼" Rp 1¼"
5 Connection circulation - Rp ¾" Rp ¾" Rp ¾" Rp ¾" Rp ¾"
6 Diameter inspection opening mm 115 115 180 180 180
7 Connection T&P - Rp ¾" Rp ¾" Rp ¾" Rp ¾" Rp ¾"
8 Connection immersion well/temp. sensor - Rp ¾" Rp ¾" Rp ¾" Rp ¾" Rp ¾"
10 Connection anode - Rp 1¼" Rp 1¼" Rp 1¼" Rp 1¼" Rp 1¼"

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0312751_SIVS_100-220_UK_V4.1, 2022-06-27
Dimensioned Sketch
IMD-1293 R0

10 Installation, Commissioning, User & Maintenance Instructions

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0312751_SIVS_100-220_UK_V4.1, 2022-06-27
2 Installation
Note
These products can be installed as vented and unvented. This manual only discusses
unvented installations. For information about vented installations please contact your
supplier.
2.1 Installation diagram The figures below show the installation diagrams. These diagrams are referred to in the
sections describing the actual connection procedure.
Installation Diagrams
Legend
1. pressure relief valve
(mandatory if mains water
pressure is too high)
3. T&P-valve (mandatory)
4. stop valve (recommended)
5. non-return valve (mandatory)
6. circulation pump (optional)
9. drain valve
11. service stop valve
12. temperature gauge (optional)
14. draw-off points
15. expansion valve (mandatory)
16. expansion vessel (mandatory)
A. cold water supply
B. hot water supply
C. circulation pipe
F. inlet heat exchanger
G. outlet heat exchanger
IMD-0449 R2
2.2 Water connections
2.2.1
Warning
The installation should be carried out by a competent person, in compliance with general
and locally applicable regulations.
Cold water side
See (A) in the installation diagram (2.1 "Installation diagram").
1. Fit an approved stop valve (4) on the cold water side as required by the applicable
regulations.
2. The maximum working pressure of the indirect water heater is 8 bar. Because the
pressure in the water pipe at times can exceed 8 bar, you must fit an approved
pressure-reducing valve (1).

12 Installation, Commissioning, User & Maintenance Instructions
2.2.2
2.2.3
3. Fit a non-return valve (5) and an expansion vessel (16).
4. Fit an expansion valve (15) and connect the overflow side to an open waste water
pipe.
Hot Water side
See (B) in the installation diagram (2.1 "Installation diagram").
Note
Insulating long hot water pipes prevents unnecessary energy loss.
1. Optional: fit a temperature gauge (12) so you can check the temperature of the tap
water.
2. Fit the T&P valve (3).
3. Fit a stop valve (11) in the hot water outlet pipe for servicing.
Circulation pipe
See (C) in the installation diagram (2.1 "Installation diagram").
If an immediate flow of hot water is required at draw-off points, a circulation pump can be
installed. This improves comfort, and reduces water wastage.
1. Fit a circulation pump (6) of the correct capacity for the length and resistance of the
circulation system.
2. Fit a non-return valve (5) after the circulation pump to guarantee the direction of
circulation.
3. Fit two stop valves for servicing (4).
4. Connect the circulation pipe according to the installation diagram (2.1 "Installation
diagram").

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3 Filling and draining
Note
These products can be installed as vented and unvented. This manual only discusses
unvented installations. For information about vented installations please contact your
supplier.
Installation Diagram
Legend
1. pressure relief valve
(mandatory if mains water
pressure is too high)
3. T&P-valve
4. stop valve (recommended)
5. non-return valve (mandatory)
6. circulation pump (optional)
9. drain valve
11. service stop valve
12. temperature gauge (optional)
14. draw-off points
15. expansion valve (mandatory)
16. expansion vessel (mandatory)
A. cold water supply
B. hot water supply
C. circulation pipe
F. inlet heat exchanger
G. outlet heat exchanger
IMD-0449 R2.0
3.1 Filling To fill the water heater, proceed as follows:
1. Open the stop valve (11) in the hot water pipe and, if present, the stop valves (4) for
the circulation pump (6).
2. Close the drain valve (9).
3. Open the nearest hot water draw-off point (14).
4. Open the stop valve (4) on the cold water side (A) so that cold water flows into the
water heater.
5. Completely fill the water heater. When a full water jet flows from the nearest draw-off
point, the water heater is full.
6. Bleed the entire installation of air, for example by opening all draw-off points.
7. The water heater is now under water supply pressure. There should now be no water
coming out of the inlet combination expansion valve or (if used) out of the T&P valve
(3). If there is, the cause might be:
- The water supply pressure is greater than the specified value (1.6 "General
specifications"). Rectify this by fitting a pressure reducing valve (1).
- The expansion valve in the protected cold supply set-up is defective or incorrectly
fitted.

14 Installation, Commissioning, User & Maintenance Instructions
3.2 Draining 1. Close the stop valve (4) between the cold water head tank and the cold water inlet
(A).
2. Open the drain valve (9).
3. Bleed the water heater (or installation) so that it drains completely.

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4 Maintenance
4.1 Preparation for
maintenance
4.2 Water-side
maintenance
4.2.1
Warning
Maintenance may only be carried out by a competent person.
At each service, the indirect water heater undergoes maintenance on water side. The
maintenance must be carried out in the following order.
1. Preparation for maintenance
2. Water-side maintenance
3. Finalizing maintenance
Note
Before ordering spare parts, it is important to write down the installation type, indirect
water heater model and the full serial number of the indirect water heater. These details
can be found on the rating plate. Only by ordering with this information can you be sure
receiving the correct spare parts.
The preparation for maintenance consists out of testing and checking if all components
are still working properly, complete the following steps:
1. Test the operation of the overflow valve of the protected cold supply setup. The water
should discharge out.
2. Check the drainage pipes from the discharge points of all valves and remove any
scale deposits that may be present.
3. Drain the indirect water heater.
Water-side maintenance consists of descaling and cleaning the tank and checking the
anodes.
Descaling and cleaning the tank
Scale and lime build-up prevent effective conduction of the heat to the water. Periodic
cleaning and descaling prevents build-up of these deposits. This increases the service
life of the indirect water heater, and also improves the heating process.
Take the rate of scale formation into account when deciding on the service interval.
Scale formation depends on the local water composition, the water consumption and the
water temperature setting. A water temperature setting of maximum 60°C is
recommended for the prevention of excessive scale build-up.
To guarantee a good, watertight seal around the cleaning opening, replace the gasket,
washers, bolts and, if necessary, the lid with new parts before reassembly. Spare parts
are obtainable from the supplier/manufacturer.
To simplify descaling and cleaning of the tank, the indirect water heater is equipped with
a cleaning opening.
Work order:
1. Undo bolts from the cover.
2. Remove cover and the gasket.
3. Inspect the tank and remove the loose scale deposits and contamination.
4. If the scale cannot be removed by hand, descale the water heater with a descaling
agent. Contact the supplier/manufacturer for advice on what descaling agent to use.
5. Close the cleaning opening. To avoid damage to the tank, tighten the bolts that
fasten the lid, with a torque no greater than 50 Nm. Use suitable tools for this.

16 Installation, Commissioning, User & Maintenance Instructions
4.2.2 Checking anodes
Anodes ensure the protection of the tank by sacrificing themselves. Insufficient anode
material may lead to poor protection and, hence, leakage of the tank.
1. Loosen the anodes one by one.
2. Check the diameter of each anode in different places. The diameter must be at least
60% of the original diameter.
3. If the diameter is less than the minimum, the anode must be replaced. Please contact
the supplier/manufacturer for ordering new anodes.
4. Mount the (new) anodes.

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0312751_SIVS_100-220_UK_V4.1, 2022-06-27
5 Warranty
Contact Lochinvar Ltd. or got to www.lochinvar.ltd.uk for the current warranty terms and
conditions.

8 Lombard Way, The MXL Centre, Banbury, Oxon, OX16 4TJ
Tel: [phone], Fax:[phone], Email: [e-mail]
www.lochinvar.ltd.uk
Lochinvar Ltd reserves the right to change
specifications without prior notice