Heatrae Sadia Multipoint 50 Manual de usuario
MULTIPOINT SS V 50/80 & 100
Fitting Instructions and User Guide
2
CONTENTS
SECTION PAGE
1.0 INTRODUCTION 3
2.0 TECHNICAL SPECIFICATION 4
3.0 INSTALLATION 7
4.0 COMMISSIONING 14
5.0 EXPLANATION TO CUSTOMER 15
6.0 MAINTENANCE 15
7.0 SPARE PARTS 18
8.0 FAULT FINDING 20
9.0 ACCESSORIES 21
10.0 GUARANTEE 22
11.0 ENVIRONMENTAL INFORMATION 23
12.0 SPARES STOCKISTS 24
3
1.0 INTRODUCTION
Thank you for purchasing a Heatrae Sadia Multipoint SS unvented water
heater. The Multipoint SS water heater is manufactured in the UK to the
highest standards and has been designed to meet all the latest relevant
safety specications.
1.1 IMPORTANT POINTS
The Multipoint SS must be installed and commissioned by a competent
person. Please read and understand these instructions before installing the
Multipoint SS. Following installation and commissioning, the operation of the
Multipoint SS should be explained to the user and these instructions left with
them for future reference.
The Multipoint SS 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
the use of the appliance by a person responsible for their safety.
Children should be supervised to ensure they do not play with the Multipoint
SS.
The Multipoint SS hot water cylinder is of unvented type. Its installation is
subject to Building Regulation G3 (England and Wales), Technical Standard
P3 (Scotland) or Building Regulation P5 (Northern Ireland). Installation must
be carried out by a competent person.
Electrical installation must be carried out in accordance with the current IEE
Wiring Regulations.
Prior to installation the unit should be stored in an upright position in an
area free from excessive damp or humidity.
4
1.2 PACK CONTENTS
Before commencing installation please check that the following
components have been supplied in the Installation Kit:
Multipoint SS Unit (x1)•
Expansion vessel 3/4” BSP male, precharge pressure 3.5bar (x1)•
Expansion vessel wall mounting bracket (x1)•
Pressure reducing valve 3.5 bar, 22mm x 22mm compression (x1)•
Single check valve 22mm x 22mm compression (x1)•
Pressure (expansion) Relief Valve 1/2”BSP x 1/2”BSP female, factory•
set at 6 bar (x1)
Tundish, 22mm x 15mm compression (x1)•
3/4” compression nuts (x2)•
Copper olive, 22mm (x2)•
Element plate tool (x1)•
Mounting brackets (x4)•
User Instructions•
Guarantee Card•
2.0 TECHNICAL SPECIFICATION
Electrical Rating 3.0kW @ 240v / 2.8kW @ 230v
Capacity 50,80 & 100 litres
Weight (100 Litre) 30Kg (empty), 130Kg (full)
Weight (80 Litre) 24Kg (empty), 104Kg (full)
Weight (50 Litre) 18Kg (empty), 68Kg (full)
Operating pressure 0.35 MPa (3.5 bar)
Rated pressure 0.6 MPa (6.0 bar)
Expansion vessel charge pressure 0.35 MPa (3.5 bar)
Expansion relief valve setting 0.6 MPa (6.0 bar)
Minimum supply pressure 0.08 MPa (0.8 bar)
Maximum supply pressure to PRV 1.6 MPa (16.0 bar)
Temperature / Pressure Relief Valve 90°C / 1.0 MPa (10.0 bar)
5
PERFORMANCE
TABLE 01: Multipoint SS Performance; Heatup, Recovery & Heat Loss
MODEL HEAT UP TIME
(MINS)
RECOVERY
(MINS)
STANDING HEAT-
LOSS kWhr/24hr
50 litre 1.5kW 98 64 0.6
50 litre 3.0kW 49 32 0.6
80 litre 1.5kW 162 112 0.8
80 litre 3.0kW 81 56 0.8
100 litre 1.5kW 208 146 1.0
100 litre 3.0kW 104 73 1.0
Heat up times are based on heating from 20°C through 45°C tempera-•
ture rise.
Recovery times are based on heating 70% of capacity through 45°C.•
Standing heat losses are based on an ambient air temperature of 20°C•
and a stored water temperature of 65°C.
6
DIAGRAM 01: MULTIPOINT SS WATER HEATER- DIMENSIONS & IMPORTANT FEATURES
01 TEMPERATURE/PRESSURE RELIEF VALVE
02 THERMOMETER
03 COMBINED THERMOSTAT & CUT OUT
04 ELEMENT
05 TERMINAL BLOCK
06 CABLE CLAMP
07 HOT OUTLET
08 CONTROL KNOB
09 COLD INLET
10 INDICATOR LIGHT
DIMENSION 50 LITRE 80 LITRE 100 LITRE
A 705 963 1151
B 802 1060 1248
300
451
100
'B'
'A'
01
02
08 10
07 09
472
104
04
06
05
03
7
3.0 INSTALLATION
Warning: this appliance must be earthed. It is suitable for A.C. supply only.
Electrical installation must be carried out by a competent electrician and be
in accordance with the latest I.E.E. wiring regulations.
Ensure the electrical supply is switched off before making any connections
to the Multipoint SS.
The Multipoint SS unvented water heater is factory tted with a Temperature/
Pressure Relief Valve which must not be removed, blocked or restricted in
any way.
Expansion MUST be accommodated within the system. The expansion ves-
sel & check valve provided in the installation kit must be installed and will
fulll this function.
3.1 LOCATION
Using Diagram 01 and the dimensions table as a guide mark the positions1.
of the xing points. Drill and plug the wall with suitable xings.
Fix the top two xings rst followed by the bottom two xings.2.
The Multipoint SS must be plumb and vertically wall mounted using the3.
wall brackets tted to the heater. The water connections must always be
at the bottom of the unit.
Enough space should be left below the unit for pipe connections and4.
above the unit for access to the Temperature/Pressure Relief Valve (400
mm minimum). Refer to Diagram 01 and the Dimensions Table to deter-
mine a suitable position for the heater.
Ensure that the wall can support the full weight of the unit and that there5.
are no hidden services (electricity, gas or water) below the surface of the
wall.
DO NOT install where the unit may freeze.6.
DO NOT install in direct sunlight or where the unit is open to the ele-7.
ments.
The latest IEE wiring regulations may contain restrictions concerning the8.
installation of these units in bathrooms.
NOTE: THE MULTIPOINT WATER HEATER IS HEAVY. PRIOR TO FIXTURE
ENSURE THE WALL IS STRONG ENOUGH TO TAKE THE WEIGHT OF THE
WATER HEATER WHEN FULL.
8
Multipoint SS
50, 80, 100
Litre
Heater
DIAGRAM 02: PLUMBING SCHEMATIC
No other valves should be placed between the expansion valve and the
Multipoint SS cylinder. The expansion valve connection must not be used for
any other purpose.
3.2 PLUMBING
To make installation of the Multipoint SS easier it is supplied with a Non1.
Return Valve, Expansion Vessel and Pressure Relief Valve.
Plumb the Multipoint water heater as shown below in Diagram 02. Ensure2.
the Pressure Reducing Valve is installed in the correct orientation by
reference to the direction of the ow arrow marked on it.
The water connections to the unit are 3/4” BSP male with Ø22 mm3.
compression ttings suitable for Ø22 mm copper pipe.
Inlet and outlet are colour coded accordingly for hot and cold. Several4.
hot outlets via conventional taps can be served, however, individual site
demands should be considered when choosing capacity and the number
of outlets.
It is recommended that a WRAS listed isolating valve (not supplied) is5.
tted on the cold water supply to the heater before the Pressure Reducing
Valve.
Plumbers Paste must not be used as it can impair the operation of the6.
valves.
9
3.3 DISCHARGE
It is a requirement of Building Regulations that any discharge from an unvented
system should be visible and safely conveyed away from the system without
danger to persons in or about the building where it is installed. The discharge
pipe should be tted in accordance with the requirements and guidance notes
of Building Regulations. Building Regulation G3 Requirements and Guidance
section 3.9 are reproduced in the following sections.
Information Sheet No.33 available from the British Board of Agrement 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 Ofcer. The discharge pipework will convey
any discharge from the unvented cylinder Temperature and Pressure Relief
Valve. (A discharge pipe will also be required from the Expansion Valve tted
to the Cold Water Combination Valve) Where practical this can be feed into the
discharge pipe from the Multipoint SS. It is recommended that an additional
tundish is tted into this discharge pipe to give an early indication of operation
of the Expansion Valve.
In some instances it may be possible to discharge into an internal waste system
and soil stack. To do this a self sealing waste valve must be tted into the
discharge pipe after the tundish to prevent foul odours or back-pressurisation
from the waste system entering the building via the tundish. In these systems
it is essential that the tundish is tted in a visible position as the nal point of
discharge will not be visible. Consult the manufacturer’s recommendations
with respect to the correct tting, orientation and waste and soil stack materials
selection. It will also be necessary to get dispensation from your local Building
Control Ofcer to discharge in this manner. Discharges from an unvented
system can be up to 95oC for several minutes, ensure any waste or soil pipe
connected to the discharge can safely accept these conditions.
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.”
Water may drip from the discharge pipe of the pressure-relief device and that
this pipe must be left open to the atmosphere.
10
The expansion relief valve is to be operated regularly to remove lime deposits
and to verify that it is not blocked.
The discharge pipe connected to the pressure relief device is to be installed
in a continuously downward direction and in a frost free environment
G3 GUIDANCE SECTION 3.9
The discharge pipe (D1) (see Diagram 03, page 12) 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 tted as close as possible and within 600mm of the
safety device e.g. the temperature / pressure 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 two pipe sizes larger, and so on. Bends must
be taken into account in calculating the ow resistance. Refer to table 02
page 12 and the worked example.
b. Have a vertical section of pipe at least 300mm long below the 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 nal point of discharge,
but where this is not possible or is practically difcult there should be clear
visibility at one or other of these locations.
An alternative approach for sizing discharge pipes would be to follow
BS6700:1987 Specication for design, installation, testing and maintenance of
services supplying water for domestic use within buildings and their cartilages,
appendix E, section E2 and table 21.
Examples of acceptable discharge arrangements are:
i. Ideally below a xed 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
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