McQuay MWMV Specifiche Scaricare il pdf (Pagina 29)

typiCal Wiring diagraMs

Console WSHP Size 009–019, All Voltages, 60Hz / Single Phase, Mark IV Board with

Auto Changeover (ACO) Remote Thermostat

- Plug Connection

TB - Terminal Block

ACO - Automatic Changeover

MCO - Manual Changeover

BR - Boilerless Relay

HR - Heater Relay

Component Layout

1. Tap-Touch Switch

2. Thermostat

3. Terminal Block

4. PC Board

5. Transformer

6. Boilerless Relay

7. Shutdown Relay

8. Auxiliary Relay

9. Heater Relay

10. Water Reg Valve Relay

11. Low Limit Thermostat

12. Night Setback Thermostat

13. Override Switch

14. Terminal Board 1

15. Terminal Board 2

16. Stop/Start Switch

17. Standby Electric Heat Switch

Notes:

1. Terminal block on PC board provides 24

VAC at terminals C and R. All other

terminals are 24 VDC output.

2. All temperature and pressure switches

are normally closed.

3. Component layout is typical, some

components shown may not be used.

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McQuay MWMV Specifiche Pagina 29