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Heatrae Sadia R 45 PLUS 3KW, Installation, Operation And Maintenance Manual

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Heatrae Sadia R 45 PLUS 3KW Installation, Operation And Maintenance Manual Download Page 8

8

3.3 Circuit Diagrams 

s

s

Inlet

pipe work 1

Inlet

pipe work 2

Outer

case

H

N

W

L1

L2

L3

J5

Electronic control

L N

Thermistor 

Solenoid valve

Element

Figure 3: Circuit diagram

Upper level sensor

Lower level sensor

Terminal block

Earth / ground

Thermal cutout

Thermostat

1
2
3
4
5
6
7
8
9

10

Potentiometer 

Potentiometer 

(Temperature control)

In Line Filter

Summary of Contents for R 45 PLUS 3KW

Page 1: ...R PLUS Installation operation and maintenance manual...

Page 2: ...Wall fixing 14 6 3 Water connections 16 7 Commissioning 18 7 1 General 18 7 2 Checklist before commissioning 18 7 3 Commissioning procedure 18 8 Operation 19 8 1 General 19 8 2 Overview 19 8 3 Temper...

Page 3: ...ituation causing serious physical injury WARNING Risk of a dangerous situation causing slight physical injury CAUTION Risk of material damage Signals important information 1 3 Abbreviations DHW Domest...

Page 4: ...sers liability To guarantee optimum operation of the appliance the user must adhere to the following instructions Read and follow the instructions given in the manuals provided with the appliance Call...

Page 5: ...UTION Ensure the drain valve is covered securely with the supplied cap to ensure accidental use does not occur WARNING Only competent persons having received the appropriate training are permitted to...

Page 6: ...fiche Technical parameters in accordance with European Commission regulations 814 2013 and 812 2013 Direct Suppliers name or trade mark R PLUS Supplier s model identifier 25L 3kW 45L 3kW 70L 3kW 120L...

Page 7: ...G Item 25L 45L 70L 120L A 830 882 1221 1021 B 510 609 609 660 C 380 425 425 457 D 74 76 76 76 E 204 245 245 396 F 235 276 276 429 G 180 220 220 362 H 148 188 188 325 I 415 463 463 562 Figure 2 Genera...

Page 8: ...N W L1 L2 L3 J5 Electronic control L N Thermistor Solenoid valve Element Figure 3 Circuit diagram Upper level sensor Lower level sensor Terminal block Earth ground Thermal cutout Thermostat 1 2 3 4 5...

Page 9: ...e via an immersion heater The hot water temperature programmed in the unit is factory set to 60 degrees centigrade but can be adjusted to suit the installation requirements by adjusting the temperatur...

Page 10: ...ored water temperature during this function exceeds that which is safe for hand wash requirements if the stored hot water is used for hand washing then an appropriate water tempering device must be fi...

Page 11: ...t to an outside wall in a safe manner via the tundish supplied Access to associated controls must be available for the servicing and maintenance of the system the heater requires access from the front...

Page 12: ...12 Figure 6 Clearance diagram 10 10 150 1000 80 A 80 10 B 250 10 C R 25L PLUS R 45L PLUS R 70L PLUS R 120L PLUS A 510 609 609 660 B 830 882 1221 1020 C 235 275 275 429 Table 5 Clearance dimensions...

Page 13: ...Hot water outlet 22mm open end pipe Breather pipe 22mm open end pipe Initial Breather Pipe with tundish supplied in kit A full bore isolating valve must be inserted into the 15mm cold water inlet pip...

Page 14: ...ly used by the water heater being replaced see tables 6 and 7 below When fitting the wall bracket ensure that the fixings used are suitable for the wall structure and the weight of the water heater wh...

Page 15: ...with the fixing bracket attached the water heater will not sit flat to the floor and therefore will be unstable Care must be taken not to allow the heater to topple over Refer to table 1 page 6 for t...

Page 16: ...rn Ireland must be adhered to The above regulations require the following A full bore servicing valve shall be installed on the inlet pipe Schedule 2 Section 16 2 A full bore servicing valve shall be...

Page 17: ...lready exists move the assembly to the correct side of the water heater Once installed connect the breather pipe to the 22mm compression fitting on the Tundish ensure connection is tight secure all pi...

Page 18: ...0 seconds the heater will switch the solenoid valve on and allow water to flow into the heater If this does not happen refer to section 10 page 25 Troubleshooting Check all pipe work and the water hea...

Page 19: ...s essential that a suitable low pressure water tempering valve is fitted in the hot water supply circuit The installer must ensure that this is carried out during installation As an end user if you ar...

Page 20: ...ully disconnect the Tundish from the breather pipe by unscrewing the small nut on the 15mm pipe side of the Tundish Carefully split the connection between the 15mm pipe and the Tundish once apart this...

Page 21: ...ter must be replaced see spares list page 29 spare 13 9 3 2 1 Inlet Pipe Filter replacement If the mesh filter requires replacement the inlet control pipe may have to be replaced item 28 in the spares...

Page 22: ...he start of this section Once removed inspect the end of the stainless steel bolt that is on the water side Carefully remove any build up of scale using the tip of a flat blade screwdriver Lightly lub...

Page 23: ...25 ECO sensor connection Remove fixing bolts as shown in figure 26 Gently loosen the immersion heater from its housing Once loose remove the immersion by twisting the immersion in an arc and then ver...

Page 24: ...could permanently damage the immersion heater Inspect the immersion heater for excess build up of scale all coils should be free of scale build up between them and there should be no build up of scal...

Page 25: ...supply drain unit and investigate the fault Leaking pipe work Turn off the power turn off the water supply drain unit and investigate the fault Leaking immersion seal Turn off the power turn off the w...

Page 26: ...LED 3LED 2 LED 1 On Figure 30 LED s close up Fault error code Fault Cause of fault Remedy E1 Indicates that a fault has been detected by the Controller linked to the thermistor The thermistor is Open...

Page 27: ...minutes during this period the lower level sensor has not detected water No water supply Check water inlet feed Filter blocked Check the condition of the filter in accordance with section 9 page 21 So...

Page 28: ...te the water supply Drain the unit Disconnect the unit Remove the unit Cap pipe work 11 2 Environmental Information Products are manufactured from many recyclable materials At the end of their useful...

Page 29: ...34207 15 Bottom fixing bracket 7034212 16 Main PCB Flat back 7034155 17 PCB clip 7034163 18 M5 x 10mm screw 7034189 19 Base shield 25L white 7034167 Base shield 45L 70L white 7034168 Base shield 120L...

Page 30: ...45L 70 wiring 7034201 Thermistor 120L wiring 7034202 34 ECO sensor 7034199 35 Wiring loom 25L RPLUS 7034194 Wiring loom 45L 70L RPLUS 7034195 Wiring loom 120L RPLUS 7034196 Description Part Number Pac...

Page 31: ...31 1 3 4 5 7 8 9 10 2 6...

Page 32: ...32 15 9 10 11 12 13 14...

Page 33: ...33 16 17 18 22 19 21 20 1 23 22 23 24 28 26 25 27 29...

Page 34: ...34 30 31 32 33 34 35...

Page 35: ...proof of purchase to register the product The Heatrae Sadia R PLUS product has not been modified in any way other than by Heatrae Sadia or Heatrae Sadia approved engineers The Heatrae Sadia R PLUS pr...

Page 36: ...What type of scale reducer has been fitted What is the hot water thermostat set temperature C What is the hot water temperature at the nearest outlet C All appropriate pipes have been insulated up to...

Page 37: ...ompany name Telephone No Gas safe register No Comments Signature SERVICE 02 Date Engineer name Company name Telephone No Gas safe register No Comments Signature SERVICE 03 Date Engineer name Company n...

Page 38: ...38...

Page 39: ...39...

Page 40: ...and sustainability charters and reduce our printed material we encourage you to download product brochures from our website In designing these files we have taken into account the need to access data...

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