McQuay FMS Series User Manual

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Figure 18. Unit sizes 024 through 042 (380 volts, three-phase) 061415321 Rev. A
Notes:
1. Mark IV/AC controller board contains a static sensitive micropro-
cessor. Proper grounding of field service personnel is required or
damage to controller may result.
2. Terminal block on Mark IV/AC board provides 24 VAC at termi-
nals R and C. All other terminals are 24 VDC output.
3. All temperature and pressure switches are normally closed.
4. Field supplied relays attached to the 24 volt terminals R, W, Y or
G may introduce electrical noise. Never install relays in series
with the inputs.
Notes:
1. Mark IV/AC controller board contains a static sensitive micropro-
cessor. Proper grounding of field service personnel is required or
damage to controller may result.
2. Terminal block on Mark IV/AC board provides 24 VAC at termi-
nals R and C. All other terminals are 24 VDC output.
3. All temperature and pressure switches are normally closed.
4. Field supplied relays attached to the 24 volt terminals R, W, Y or
G may introduce electrical noise. Never install relays in series
with the inputs.
Figure 19. Unit sizes 048 and 060 (380 volts, three-phase) 061415322 Rev. A

McQuay FMS Series Specifications

General

Brand	McQuay
Model	FMS Series
Category	Heat Pump
Language	English