INSTALLATION
HEATING CONNECTION
The HeatMaster® has two connections at the rear that can be used to connect a central heating circuit. Connecting a heating system may reduce the domestic hot water performance.
WARNING
The power supply to the heating pump for the MCBA is limited to 250W. In the event of a higher wattage, provide a relay between the pump and the MCBA.
Expansion
The HeatMaster® 201 models are equipped with 4
expansion vessels).
Example of a single circuit connection
1.
2.Heating pump
3.
4.Isolating valves
5.Safety valve set to 3 bar with pressure gauge
6.Expansion vessel
7.Drain cock
8.MCBA controller, module
9.
ELECTRICAL CONNECTIONS
Electrical supply
The boiler operates on a
Conformity
Boiler installation must comply with the prevailing local standards and legislation.
Safety
The stainless steel tank must be earthed separately.
The power to the boiler must be switched off before any work is carried out.
HeatMaster® 201 wiring diagram key
01. Main switch
02. | Module |
03. | Module |
04. | MCBA |
05. | 24V transformer |
06. | Display |
7
8 |
1 |
|
| 5 |
| 9 | 4 |
| 6 | |
|
| |
3 | 2 | 4 |
07. | Room thermostat (optional) |
08. | |
09. | NTC1 primary temperature sensor |
10. | NTC2 primary temperature sensor |
11. | NTC3 hot water temperature sensor |
12. | NTC4 outdoor sensor (optional) |
13. | Summer/Winter switch |
14. | NTC6 heating outlet sensor (optional) |
15. | Heating circulator pump (not supplied) |
16. | Heating circulator pump (not supplied) for use with |
| operated valve |
17. | Charging pump |
18. | Charging pump |
19. | Charging pump Booster |
20. | |
21. | Alarm switch |
22. | Outside gas valve/burner operation switch |
23. | Hot water mode operating switch |
24. | Fan (BG |
25. | Gas valve (BG |
26. | Gas pressure switch (BG |
27. | Charging circulator pump control relay |
Note: The switches have zero voltage.
WARNING
The pimary safety valve is supplied with a plastic tube connected to the discharge outlet - this is for test purposes only and should be removed. The safety valve should be connected to a drain using a metallic pipe eg. copper.
WARNING
In the case of heating at low temperature, the use of the kit (code: 10800099) is required.
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