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UNVENTED MAINS PRESSURE WATER HEATER

100, 120, 150, 170, 210, 250 AND 300 LITRE

DIRECT AND INDIRECT MODELS

INSTALLATION AND SERVICING INSTRUCTIONS

36 00 5944 Issue 1

PACK CONTENTS

Heatstore unvented water heater incorporating immersion heater(s) and thermal controls

Factory

fitted Temperature/Pressure Relief Valve

Cold Water Combination Valve

Expansion Vessel

Expansion Vessel Mounting Bracket

Tundish

Motorised Valve (Indirect models only)

Com-

pression nuts and olives

Immersion heater spanner

Installation Instructions

Содержание HSUDC100

Страница 1: ...sue 1 PACK CONTENTS zHeatstore unvented water heater incorporating immersion heater s and thermal controls zFactory fittedTemperature Pressure ReliefValvezColdWaterCombinationValve zExpansionVessel zExpansionVessel Mounting BracketzTundish zMotorisedValve Indirect models only zCom pression nutsand olives zImmersionheaterspanner zInstallation Instructions ...

Страница 2: ...ntrol devices needed to allow connec tion to the cold water mains All these components are pre adjusted NOTE Prior to installation the unit should be stored in an upright position in an area free from excessive damp or humidity This appliance complies with the requirements of the CE marking directive and is KIWAapproved to show compliance with Building Regulations Section G3 The following instruct...

Страница 3: ...oldWater CombinationValve can be con nected to a maximum mains pressure of 16 bar 2 4 OUTLET TERMINALFITTINGS TAPS ETC The Heatstore HSU can be used with most types of terminalfittings Itisadvantageousinmanymixershow ers to have balanced hot and cold water supplies In these instances a balanced pressure cold water con nection should be placed between the Cold Water Combination Valve and the Heatst...

Страница 4: ...can be achieved by attaching a hose to the drain tap outlet spigot 3 5 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 Cold Water Combination Valve and the Heatstore HSU see Fig 5 The loca tion of the Expansion Vessel should allow access to recharge...

Страница 5: ...ndirectly heated Primary flow 82deg C at 15l min HSUIC150 24mins 20mins Indirectly heated Primary flow 82deg C at 15l min HSUIC210 32mins 29mins Indirectly heated Primary flow 82deg C at 15l min Test results obtained by WRc NSFin accordance with Test Criteria 1 50 220 and 1 50 222 SURFACE AREA sq m RATING kW RECOVERY mins 120 0 43 12 5 22 121 150 0 55 16 4 21 152 170 0 61 16 0 24 173 210 0 68 18 3...

Страница 6: ...er than the nominal outlet size of the safety device unless its total equiva lent 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 calculat ing t...

Страница 7: ...m 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 4 Sizing of copper discharge pipe D2 for common temperature relief valve outlet sizes FIG 4 Typical discharge pipe arrangement extract from Building Regulation G3 Guidance section 3 9 3 9 WARNINGS Under no circum...

Страница 8: ... CABLE SIZE TO INDIRECT SYSTEM CONTROLS JUNCTION BOX SEE FIGS 7 8 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 T P RELIEF VALVE TO HOT OUTLETS MAINS WATER SUPPLY ISOLATING VALVE NOT SUPPLIED TUNDISH DISCHARGE PIPE DRAIN COCK NOT SUPPLIED PRIMARY RETURN PRIMARY FLOW ELEMENT CONTROLS HOUSING INLET...

Страница 9: ...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 primary circuit Primary connections are 22mm compression However 3 4 BSP parallel threaded fittings can be fitted to the primary coil connections if required 5 2ELECTRICALSUPPLY FIG 6 All Indirect units are fitted with a 3kW immersion heater and a comb...

Страница 10: ...ringmay differ from those shown Refer to instructions with controls selected ADOUBLEPOLEISOLATING SWITCHMUSTBEINSTALLED INTHEMAINSSUPPLY ALLEARTHCONNECTIONS BECONNECTEDBACKTO THEMAINSEARTHSUPPLY PROGRAMMER BOILER PUMP ROOM STAT ZONE VALVE DHW SUPPLIED ZONE VALVE HTG INDIRECT CONTROLS 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 GY G W Bl O GY 1 3 2 L N 2 3 2 ...

Страница 11: ...anufacturer s commissioning instructions To ensure the Heatstore HSU primary heat exchanger is filled the 2 port motorised valve supplied should be manu ally opened by moving the lever on the motor hous ing to the FLUSHING ONLY setting When the pri mary circuit is full return the lever to the NORMAL USE position Switch on the boiler ensure the pro grammer is set to Domestic Hot Water and allow the...

Страница 12: ...e immersion heater s the unit must be drained Ensure the water and electrical supply and boiler 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 Direct models Open the cover s to the immersion heater housing s and disconnect ...

Страница 13: ...alve cartridge 6bar 95 605 864 Expansion valve complete 6bar 95 607 030 Cold water combination valve complete 95 605 022 Cold water combination valve body 95 605 030 Check valve housing 95 605 028 Pressure reducing valve cartridge 3 5bar 95 607 029 Pressure reducing valve housing 95 605 027 Temperature Pressure Relief Valve 95 605 810 Expansion vessel 12 litre 100 120 and 150 litre models 95 607 8...

Страница 14: ...ec k boiler operation If fault is s us pec ted c ons ult boiler m anufac turer s ins truc tions 5 INDIRE CT therm al c ut out has operated 5 Chec k Res et by pus hing button on c ut out Chec k operation of indirec t therm os tat 6 INDIRE CT m otoris ed valve not c onnec ted c orrec tly 6 Chec k wiring and or plum bing c onnec tions to m otoris ed valve s ee Fig 7 W ater dis c harges 1 INTE RM ITTE...

Страница 15: ...e controls are located within the lower grey terminal housing along with the immersion heater thermostat The thermostat is factory set to give a water storage temperature of approx 55o to 60o C Access to the thermostat can be made by opening the terminal housing cover DIS CONNECT THE ELECTRICAL SUPPLY BEFORE OPENING THE COVER Temperature adjustment is made by inserting a flat bladed screwdriver in...

Страница 16: ...unit is not guaranteed against damage by frost and the inner container with integral immersion heater s is not guaranteed against excessive scale build up Periodic loss of charge pressure from the Expansion Vessel is normal indicated by an intermittent discharge of water from the Expansion Valve and is not cov ered under the product guarantee Refer to Section 7 5 for details on how to restore the ...

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