Samsung RC090MHXEA Installation Manual Download Page 37

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Trouble shooting

•

Incorrect handling of thermostat, safety valve or other valves may lead to tank rupture. When servicing the unit
follow instructions carefully:

•

Always turn off main power supply when water supply is being shut off.

•

Test the free operation of the safety valve regularly by opening the valve ensuring the water flows freely.

•

Electrical connection and all servicing of the electrical components should only be carried out by an authorized
electrician.

•

Fitting and all servicing of plumbing fixtures should only be carried out by an authorized installer.

•

When replacing the thermostat, safety valve or any other valve or part supplied with this unit, use only approved
parts of the same specification.

WARNING

Error codes

If the unit has some problems and does not work normally, error code is shown on the OUTDOOR UNIT main PBA or LCD
of the wired remote controller.

Display

Explanation

Error Source

101

CONTROL KIT / OUTDOOR UNIT wire connection error

CONTROL KIT,
OUTDOOR UNIT

162

EEPROM Error

CONTROL KIT

201

CONTROL KIT/OUTDOOR UNIT communication error (Matching error)

CONTROL KIT,
OUTDOOR UNIT

202

CONTROL KIT/OUTDOOR UNIT communication error (3 min)

CONTROL KIT,
OUTDOOR UNIT

203

Communication error between INVERTER and MAIN MICOM (6 min)

OUTDOOR UNIT

221

OUTDOOR UNIT temperature sensor error

OUTDOOR UNIT

231

Condenser temperature sensor error

OUTDOOR UNIT

251

Discharge temperature sensor error

OUTDOOR UNIT

320

OLP sensor error

OUTDOOR UNIT

403

Detection of OUTDOOR UNIT compressor freezing (During cooling operation)

OUTDOOR UNIT

404

Protection of OUTDOOR UNIT when it is overload (during Safety Start, Normal
operation state)

OUTDOOR UNIT

416

Discharge of a compressor is overheated

OUTDOOR UNIT

419

OUTDOOR UNIT EEV operation error

OUTDOOR UNIT

425

Power source line missing error (only for 3-phase model)

OUTDOOR UNIT

440

Heating operation blocked (outdoor temperature over 35°C)

OUTDOOR UNIT

441

Cooling operation blocked (outdoor temperature under 9°C)

OUTDOOR UNIT

458

OUTDOOR UNIT fan1 error

OUTDOOR UNIT

461

[Inverter] Compressor startup error

OUTDOOR UNIT

462

[Inverter] Total current error/PFC over current error

OUTDOOR UNIT

463

OLP is overheated

OUTDOOR UNIT

EHS mono_RC＊＊＊MHXGA_IM_E_34411A(3).indd 36

2012-11-26 오후 3:02:01

Summary of Contents for RC090MHXEA

Page 1: ...EHS mono_RC MHXGA_IM_E_34411A 3 indd 60 2012 11 26 오후 3 02 06 ...

Page 2: ...nstallation manual imagine the possibilities ThankyouforpurchasingthisSamsungproduct To receive more complete service please register your product at www samsung com register E S F I P D DB98 34411A 3 EHS mono_RC MHXGA_IM_E_34411A 3 indd 61 2012 11 26 오후 3 02 06 ...

Page 3: ...irements of the LowVoltage Directive 2006 95 EC the EMC Directive 2004 108 EC and the pressure equipment directive 97 23 EC f f The manufacturer shall not be responsible for damage originating from unauthorized changes or the improper connection of electric and hydraulic lines Failure to comply with these instructions or to comply with the requirements set forth in the Operating limits table inclu...

Page 4: ...bed in the installation manual to ensure accessibility from both sides and allow repairs or maintenance operations to be carried out If the units installed without complying with procedures described in manual additional expenses can be asked because special harnesses ladders scaffolding or any other elevation system for repair service will NOT be considered part of the warranty and will be charge...

Page 5: ...ite Cylinder unit Standard models NH200CHXEA NH300CHXEA Option Accessories f f Keep supplied accessories until the installation is finished f f Hand the installation manual over to the customer after finishing installation f f The quantities are indicated in parentheses Installation manual 1 Drain plug 1 Fastener nut 1 Rubber cover wire 2 Drain cap 1 EHS mono_RC MHXGA_IM_E_34411A 3 indd 4 2012 11 ...

Page 6: ...erter Propeller Ø520 3 blade BLDC Inverter Propeller Ø520 3 blade BLDC Inverter Flow switch LPM 16 1 5 Magnetic decreasing 16 1 5 Magnetic decreasing 16 1 5 Magnetic decreasing 16 1 5 Magnetic decreasing Base heater W 150 150 150 150 Refrigerant g 1 400 R410A 2 200 R410A 2 200 R410A 2 200 R410A Noise Heat Cool Pressure dBA 63 60 64 62 64 62 64 62 Water connection In Out Inch 1 0 1 0 1 0 1 0 1 0 1 ...

Page 7: ...and return collector SAMSUNG shall not be held liable for any damage resulting from not observing this rule SAMSUNG do not provide specific water system components such as Pressure relief valve Air vent valve buffer tank and etc Installers and end users shall consider how to install the above designated components in overall water system depending on the installation conditions If the components a...

Page 8: ... Supply header Return header Return header Under floor heating coils Radiators or convectors Room thermostat Wireless Room thermostat option Wired RF Receiver From city water Wired controller Control Kit provided by SAMSUNG Hot water Supply ExpansionVessel EHS mono_RC MHXGA_IM_E_34411A 3 indd 7 2012 11 26 오후 3 00 22 ...

Page 9: ...Heat pump for R410A 1 Fan chassis f f RC090MHX 620 940 330 973 998 528 537 675 360 384 Unit mm 2 Fan chassis f f RC120MHX RC140MHX RC160MHX 620 330 360 384 940 1395 1420 Unit mm EHS mono_RC MHXGA_IM_E_34411A 3 indd 8 2012 11 26 오후 3 01 49 ...

Page 10: ...MHX RC140MHX RC160MHX 513 4 151 5 83 5 244 4 Unit mm Unit mm RC090MHX RC120MHX RC140MHX RC160MHX 513 4 151 5 83 5 244 4 Unit mm Unit mm RC090MHX RC120MHX RC140MHX RC160MHX Unit mm Unit mm EHS mono_RC MHXGA_IM_E_34411A 3 indd 9 2012 11 26 오후 3 01 53 ...

Page 11: ...10 Main components RC090 NO Name Note PHE 48P Base heater SUS316L 150W Water fitting BSPP 1 Male EHS mono_RC MHXGA_IM_E_34411A 3 indd 10 2012 11 26 오후 3 01 53 ...

Page 12: ...ISH RC120 RC140 RC160 NO Name Note PHE 72P Base heater SUS316L 150W Water hose in Rubber hose Water hose out Rubber hose Water fitting BSPP 1 Male EHS mono_RC MHXGA_IM_E_34411A 3 indd 11 2012 11 26 오후 3 01 53 ...

Page 13: ...escription PHE Plate heat exchanger T S 1 For water outlet temp sensor T S 2 For water inlet temp sensor T S 3 For PHE out temp T S 4 For discharge temp T S 5 For cond temp T S 6 For ambient temp sensor S V Service valve inch Accum Accumulator TW2 PHE inlet water temperature TW1 PHE outlet water temperature EHS mono_RC MHXGA_IM_E_34411A 3 indd 12 2012 11 26 오후 3 01 54 ...

Page 14: ...wire rope f f Fasten the outdoor unit by two 8m or longer wire ropes as shown at the figure To prevent from damage or scratches insert a piece of cloth between the outdoor unit and rope then move the unit Plate protection cloth Wire rope The appearance of the unit may be differ ent from the picture depending on the model Moving the outdoor unit with a fork lift f f Insert the fork into the wooden ...

Page 15: ... clearance around the outdoor unit especially from a radio computer stereo system etc f f When installing the outdoor unit near seashore make sure it is not directly exposed to sea breeze If you can not find an adequate place without direct sea breeze make sure to apply anti corrosion coating on the heat exchanger f f Install the outdoor unit in a place such as near buildings etc where it can be p...

Page 16: ...condition defrost etc ice may be formed in the drain route If the ice is accumulated it may cause critical damage to the product ex lakeside of cold area in winter time seashore alpine region and etc CAUTION This device must be installed according to the national electrical rules With an outdoor unit having net weight upper than 60kg we suggest do not install it suspended on wall but considering f...

Page 17: ...ore 600 or more 1 500 or more 2 000 or more When 3 sides of the outdoor unit are blocked by the wall The upper part of the outdoor unit and the air outlet is towards the wall 600 or more 300 or more 1 500 or more 300 or more The upper part of the outdoor unit and the air outlet is opposite the wall When front and rear side of the outdoor unit is towards the wall EHS mono_RC MHXGA_IM_E_34411A 3 ind...

Page 18: ...towards the wall The upper part of the outdoor unit and the air outlet is opposite the wall 1500 or more 600 or more 3000 or more 300 or more 3000 or more When front and rear side of the outdoor unit is towards the wall The units must be installed according to distances declared in order to permit accessibility from each side either to guarantee correct operation of maintenance or repairing produc...

Page 19: ...oof you have to check the ceiling strength and waterproof the unit CAUTION Outdoor unit support Soft rubber designed to cut off vibration from rack to wall not supplied with product Designed to cut off residual vibration from outdoor unit to rack not supplied with product 20mm Anchor bolt Outdoor unit Base surface Outdoor unit support f f Outdoor unit installed on the wall by rack Ensure the wall ...

Page 20: ...work is not enough it can lead to system performance degration and system damages WARNING Drain cap x 3ea Drain plug x 1ea Drain hole Ø20 x 4ea Air discharge side 30 mm 1 Prepare a water drainage channel around the foundation to drain waste water from around the unit 2 If the water drainage of the unit is not easy please build up the unit on a foundation of concrete blocks etc the height of the fo...

Page 21: ... areas it is very important to select an installation site where the snow will not affect the unit If lateral snowfall is possible make sure that the heat exchanger coil is not affected by the snow If necessary construct a lateral canopy 1 Construct a large canopy 2 Construct a pedestal Install the unit high enough off the ground to prevent it being buried under snow f f The outdoor unit should be...

Page 22: ...ions with a torque wrench as specified in below table If not connections and parts can be damaged and leaks The unit is only to be used in a closed water system If applications are in open water circuit it will generate Heat exchangers fouling Corrosion Leak CAUTION Name Tightening torque 1 BSPP1 350 380 kgf cm 34 37 N m 2 Flow switch 72 82 kgf cm 7 8 N m Flushing and air purging When filling wate...

Page 23: ...ipes out with clean water to remove contaminants in pipes during installation The strainer water filter must be cleaned after flushing the pipes and it should be cleaned periodically Replace strainer when necessary Charging Charge the water until a pressure of 1 5 2 0bar by using make up water assembly Field supply The water pressure indicated on the manometer will vary depending on the water temp...

Page 24: ...stem Therefore the pre pressure should only be adjusted by a licensed installer 2 5 2 0 1 5 1 0 0 5 0 0 150 200 250 300 350 Total water volume ℓ Pre pressure bar Operation range Installation height difference a Water volume 220 Litres 220 Litres 7m No pre pressure adjustment required Actions required Pre pressure must be decreased calculate according to Calculating the pre pressure of the expansio...

Page 25: ...ration 0 20 40 60 80 100 120 140 160 180 200 0 10 20 30 40 50 60 70 80 90 RC090 LPM kPa WATER EG 10 EG 20 EG 40 EG 45 0 20 40 60 80 100 120 140 160 180 200 0 10 20 30 40 50 60 70 80 90 RC120 140 160 LPM kPa WATER EG 10 EG 20 EG 40 EG 45 Changing Glycol concentration can cause the pressure drop of the system and it can leads to make flow rate rather slow Just in case performance degration installer...

Page 26: ...ates around 2 0 bar There shall be enough space for Service works Water pipe and connections shall be cleaned by using water or cleaner before operating the unit at first time Considering E S P and water pump performance select water plumbing specification and under floor loofs Make sure to calculate the total resistance of piping system and determine the size of pipes before selecting the require...

Page 27: ...l due to blockage of heat exchangers and corrosion in some components Filter mesh 30 Piping insulation The complete water circuit inclusive all piping must be insulated to prevent condensation during cooling operation and reduction of the heating and cooling capacity as well as prevention of freezing of the outside water piping during winter time The thickness of the sealing materials must be at l...

Page 28: ...nect the air conditioner to grounding system before performing the electrical connection When installing the unit you shouldn t use inter connection wire CAUTION Example of EHS system When using ELB for 1 phase Communication cable ELCB 30A Grounding Grounding Control kit Outdoor Unit Power cable Communication cable MCCB 1Ø ELB or ELCB 1Ø 1Ø When using ELB for 3 phase 4 wires Power cable 1Ø Control...

Page 29: ...hloroprene sheathed flexible cord Code designation IEC 60245 IEC 57 CENELEC H05RN F f f Equipment complying with EN IEC 61000 3 12 Indoor Unit Load Power supply Power cable MAX length Type GL mm2 wires m A MIM E03A No Heater Water Pump Valve Wired RMC 1Ø 220 240V 50Hz 1 5 3 10m 10 2 5 3 10m L 20m 10 Booster Heater 3kw 4 0 3 10m 20 6 0 3 10m L 20m 20 Booster Heater 3kw Backup Heater 3kw 6 0 3 10m 4...

Page 30: ...e shall not be lighter than polychloroprene sheathed flexible cord Code designation IEC 60245 IEC 57 CENELEC H05RN F f f This equipment complies with IEC 61000 3 12 provided that the short circuit power Ssc is greater than or equal to 3 3 MVA at the interface point between the user s supply and the public system It is the responsibility of the installer or user of the equipment to ensure by consul...

Page 31: ...N F materials When installing the indoor unit in a computer room or network room use the double shielded Tape aluminum polyester braid copper cable of FROHH2R type 1 phase terminal block spec AC power M5 screw Communication M4 screw N L 15 12 9 95 3 phase terminal block spec AC power M4 screw Communication M4 screw N L3 T L2 S L1 R 9 95 11 55 9 95 EHS mono_RC MHXGA_IM_E_34411A 3 indd 30 2012 11 26...

Page 32: ...atly it may shorten the life of the condenser If the unbalanced power is exceeded over 4 of supply rating the indoor unit is protected stopped and the error mode indicates To protect the product from water and possible shock you should keep the power cable and the connection cord of the indoor and outdoor units within ducts with appropriate IP rating and material selection for your application Ens...

Page 33: ...ing wiring work and attach the front cover securely Ground wire for the indoor unit and outdoor unit connection cable must be clamped to a soft copper tin plated eyelet terminal with M4 screw hole NOT SUPPLIEDWITH UNIT ACCESSORIES NOTE Connecting the power terminal f f Connect the cables to the terminal board using the compressed ring terminal f f Cover a solderless ring terminal and a connector p...

Page 34: ...6 8 4 1 3 16 8 4 1 3 16 8 4 1 3 16 Allowance mm inch 0 2 0 007 0 0 0 4 0 015 0 0 0 4 0 015 0 0 0 4 0 015 0 0 0 4 0 015 0 0 0 4 0 015 0 0 0 4 0 015 0 0 0 4 0 015 0 0 t Min mm inch 0 9 0 03 1 15 0 04 1 45 0 05 1 7 0 06 1 8 0 07 1 8 0 07 2 0 0 078 f f Connect the rated cables only f f Connect using a driver which is able to apply the rated torque to the screws f f If the terminal is loose fire may oc...

Page 35: ...shing test mode K3 Reset K4 View mode Refer toView mode display ON 1 2 3 4 5 6 7 8 4 View Mode When the K4 switch is pressed you can see information about our system state as below Number of press Display contents Display Units Segment 1 Segment 2 Segment 3 Segment 4 0 Communication State 10s digit ofTx 1s digit ofTx 10s digit of Rx 1s digit of Rx 1 Order frequency 1 100s digit 10s digit 1s digit ...

Page 36: ...DIP Switching setting KEY ON default OFF Remark K5 Auto Address Outdoor unit recognize the address of indoor unit by random access Manual Address Outdoor unit recognize the address of indoor unit by rotary switch of indoor unit In Monobloc K5 must be ON K6 Operating time of base heater is 15min Operating time of base heater is 20min Base heater will operate under 0 C K7 Anti stack snow mode ON Ant...

Page 37: ...01 CONTROL KIT OUTDOOR UNIT communication error Matching error CONTROL KIT OUTDOOR UNIT 202 CONTROL KIT OUTDOOR UNIT communication error 3 min CONTROL KIT OUTDOOR UNIT 203 Communication error between INVERTER and MAIN MICOM 6 min OUTDOOR UNIT 221 OUTDOOR UNIT temperature sensor error OUTDOOR UNIT 231 Condenser temperature sensor error OUTDOOR UNIT 251 Discharge temperature sensor error OUTDOOR UNI...

Page 38: ... Wired Remote Controller 602 Wired remote controller Master Slave setting error Wired Remote Controller 604 Communication tracking error between the CONTROL KIT and wired remote controller CONTROL KIT Wired Remote Controller 607 Communication error between the Master and Salve wired remote controllers Wired Remote Controller 901 Water inlet PHE temperature sensor error open short OUTDOOR UNIT 902 ...

Page 39: ... 7 0 then oxidation of the glycol occurred the system should be drained and flushed thoroughly before severe damage occurs Make sure that the disposal of the glycol solution is done in accordance with relevant local and national regulation Using service valve To open the service valve 1 Open the cap and turn the stop valve counterclockwise by using a hexagonal wrench 2 Turn it until the axis is st...

Page 40: ...ng refrigerant 2 After 30 minutes of operation open the service valve on low pressure side in Heat Pump 3 Open the valve for low pressure side in the manifold gauge to recharge the remaining refrigerant 4 After completing close the valves in manifold gauge and eliminate the hoses from service valves Scale Service valve Manifold gauge High pressure side Low pressure side Low pressure side High pres...

Page 41: ...urely on foundation as it can fall over strong wind or earthquake If the outdoor unit is not properly fixed it turns over and accidents may occur f f Secure power cable with a conduit which is accessory part for cylinder unit not to be pulled out by external force If fixing is incomplete it can cause trouble with a heat generation electric shock or fire and so on f f The disinfection function fiel...

Page 42: ... can normally only heat the domestic hot water to between 45 55 C therefore provision should be made to periodically heat the cylinder to about 65 C to prevent growth of legionella Cylinder unit shall be located and installed indoors garage multipurpose room boiler room Always ensure that the ambient temperature around unit have to be above 0 C around the year If the unit and the pipes are exposed...

Page 43: ...7 Combination valve 1 8 Expansion relief valve 1 9 Tundish 1 Ø15 x Ø22 mm 10 Temperature and pressure relief valve 1 11 Drain cock 2 Packaged 12 ExpansionTank 1 WirelessThermostat 1 DanfossTP5000 Si RF Flow Switch 16 lpm 1 Sika f f 2 motorized valves are installed in the cylinder as factory specifications Those parts enable the cylinder to achieve zone control EHS mono_RC MHXGA_IM_E_34411A 3 indd ...

Page 44: ... BSP 5 4 heater 5 4 heater 1 1 2 BSP X 3 4 BSP female ADAPTER 1 1 2 BSP X 3 4 BSP female ADAPTER 1 2 BSP ANODE Recirc 3 4 BSP 3 4 BSP 1 2 BSP 3 4 BSP female L 70mm 3 4 BSP female L 70mm 3 4 BSP female L 60mm 3 4 BSP female L 60mm COIL 0 71m2 No Part 1 Insulation 2 Recirculation tube 3 Thermistor pocket 4 Electric box 5 Anode 6 Heater element 7 Coil 8 Thermostat EHS mono_RC MHXGA_IM_E_34411A 3 indd...

Page 45: ...adiators To UFHs From both radiators and UFHs From heat pump Supply Header Heat pump unit Supply Header Return Header Return Header Hot water Supply From CityWater a PublicWater Supply To heat pump Water pump Water pump EHS mono_RC MHXGA_IM_E_34411A 3 indd 44 2012 11 26 오후 3 02 03 ...

Page 46: ...40V 50Hz 240V 50Hz Thermostat 1 AUTO Requisite C 40 70 60 preset 40 70 60 preset Thermostat 2 MANUAL Requisite C 85 85 Heating coil for heat pump Material quality 1 4162 1 4162 Heating area m2 0 8 0 8 Combination valve Model name SOLE 604 SOLE 604 Pressure reducing valve bar 3 3 Connection size Ø22 mm Ø22 mm Expansion relief valve Model name SOLE 381 SOLE 381 Relief pressure bar 8 8 Tundish Connec...

Page 47: ...r capacity BS EN 12897 60 C ℓ 184 229 Heating times BS EN 12897 15 60 C min 31 68 45 Heating power of coil BS EN 12897 kW 17 98 25 71 Other Packaging Eco Foam PUF Adjustable legs pcs 3 Model max design pressure Operating pressure CW feed coil Pressure drop primary heater Temp pressure relief valve Safety valve Pressure conn Exp Vessel capacity NH200CHXEA 8 bar cw in 3bar coil 2 5bar 0 03bar 90 95 ...

Page 48: ... malfunction f f Observe the clearances and dimensions as seen below during installing the water tank The installation space mentioned above is minimum suggested clearance To secure enough service space and performance of system take account of more sufficient space Be sure to install unit in a place strong enough to withstand its weight Total weight 365 kg Tank 65 kg Water 300 kg NOTE 33 30 113 4...

Page 49: ... rod or telephone wire If earthing is incomplete electric shock or fire may occur 1 40 4 66T 59T 2 42 52 50 8 63 5 1 2 L N Date code Cal lot No 59T 4117 ø5 56 2 holes Outer casing Wiringdiagram Electrical connections Technical Data Electric element 2 6 kW 230V 1 phase 1 1 4 connection with O ring seal Adjustable Electric output can be reduced by cutting one bridge on the element Thermostat 40 70 C...

Page 50: ...onnected to the electrical supply through a double pole linked switch with a minimum break capacity of 13 amps All internal wiring is factory mounted Each immersion heater has a working thermostat adjustable between 40 C 70 C A safety cut out is also incorporated within the thermostat and will operate at 85 C 3 C Should this happen press the reset button Important Before resetting the safety cut o...

Page 51: ...50 Cylinder unit Switch box layout Control Kit EHS mono_RC MHXGA_IM_E_34411A 3 indd 50 2012 11 26 오후 3 02 05 ...

Page 52: ... theTemperature Pressure ReliefValve TPRV mounted on the side of the cylinder This ensures that the cylinder does not have to be drained down in order to service the inlet control set Ensure that the arrow points in the direction of the water flow Select a suitable position for the expansion vessel Mount it to the wall using the bracket provided Use the hose to connect to the inlet control group H...

Page 53: ...ded on direct electrically heated units being used on off peak electricity tariffs f f Check and tighten all mechanical joints prior to commissioning f f Cap and seal 2nd heating zone valve outlet if not in use to avoid possible leaks on the product f f Please note that the maximum operating pressure of the secondary circulation is 3 bar Discharge pipe f f Connect the discharge pipe from the tundi...

Page 54: ...ted 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 be of metal and a Be at least one pipe size larger than the nominal outlet size of the safet...

Page 55: ...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 Worked Example The example below is for G1 2 temperature relief valve with a discharge pipe D2 having 4 elbows and length of 7m from the tundish to the point of discharge FromTable 1 Maximu...

Page 56: ...boiler manufacturer 5 As at No 2 6 Check wiring and or plumbing connections to motorized valve Intermittent water discharge 1 Reduced internal expansion 2 Thermal control failure NoteWater will be hot 1 Repressurize expansion vessel Follow cold water discharge instructions on page 4 2 Switch off power to immersion heater s and boiler supply to the unit When discharge has stopped check thermal cont...

Page 57: ...blem still persists contact a competent engineer Repressurize expansion vessel Follow cold water discharge instructions on page 4 Switch off power to immersion heaters and boiler supply to the unit When discharge has stopped check thermal controls and replace as necessary Thermal control failure Cold water PRV incorrectly fitted Check and refit as required YES YES YES YES YES NO NO NO EHS mono_RC ...

Page 58: ...s temperature If in doubt at any stage you must consult a qualified technician ReduceTemperature setting Faulty thermostat replace Has immersion heater thermal cut out operated Check and reset button Check and set to hot water programme Is the motorized valve operating correctly Check wiring or plumbing connections Has cylinder thermal cut out operated Check and reset button Is the boiler working ...

Page 59: ...essure relief valve 4 Allow to drain Follow commissioning instructions above to refill Recommissioning instructions Coldortepidwaterdischargefromtundish Thetundishshouldbeinstalledawayfromelectricaldevices 1 Close cold water supply valve 2 Open a hot tap 3 Repressurise the expansion vessel air charge to its set level 4 Close hot tap 5 pen the cold water supply valve Hot water discharge from tundis...

Page 60: ...e not guaranteed for use with a private water supply The immersion heater can be removed to provide visual inspection access to the cylinder Tundish Install theTundish in a vertical position within a maximum of 600mm from the temperature and Pressure ReliefValve drain connection Ensure the expansion relief pipework discharges through the tundish Tundish pipework must be 22mm with a minimum vertica...

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