McQuay RDS 800C User Manual

McQuay IM 987 59
Wiring Diagrams
Wiring Diagrams
Legend
ID Description Standard location
ACT3, 4 Actuator motor, economizer Economizer section
ACT5 Actuator motor, discharge iso-
lation damper
Discharge section
ACT6 Actuator motor, return air iso-
lation damper
Return section
ACT7 Actuator motor, heat face/by-
pass
Coil section, heat
ACT8 Actuator motor, cool face/By-
pass
Coil section, cool
ACT10,
11
Actuator motor, exhaust
dampers
Return section
ACT12 Actuator motor, enthalpy
wheel bypass damper
Energy recovery section
AFD10 Adjustable frequency drive,
supply fan
AFD/supply fan section
AFD11 Adjustable frequency drive,
evap cond. fans
Main/RCE control box
AFD20 Adjustable frequency drive,
return/exhaust fan
AFD/ret. ex. fan section
AFD60 Adjust. freq. drive, energy re-
covery wheel(s)
Energy recovery section
AS Airflow switch, burner blower Gas heat box
BM Burner blower motor Heat section, gas
C10 Power factor capacitors, sup-
ply fan
Supply Fan section
C20 Power factor capacitors, re-
turn fan
Return section
CB10 Circuit breaker, supply fan Main control box
CB11 Circuit breaker, evaporative
condenser fan(s)
Main/cond. control box
CB20 Circuit breaker, return/ ex-
haust fan
Main control box
CB60 Circuit breaker, energy recov-
ery wheel
Main control box
CCB1, 2 Compressor control boards,
refrig. circuits
Main control box
CPC Circuit board, main, micro
controller
Main control box
CPR Circuit board, expansion, mi-
cro controller
Main control box
DAT Discharge air temperature
sensor
Discharge section
DFLH Design flow lefthand sensor Return section
DFRH Design flow righthand sensor Return section
DHL Duct hi-limit Main control box
DS1 Disconnect, total unit or cond/
heat
Main control box
DS2 Disconnect, SAF/RAF/con-
trols
Main control box
DS3 Disconnect, electric heat Electric heat box
EAT Exhaust air temperature sen-
sor
Energy recovery section
EFT Entering fan air temperature
sensor
Supply fan section
EHB1 Staged electric heat board Main control box
ERB1 Energy recovery board Main control box
ERM1 Energy recovery wheel motor
#1
Energy recovery section
ERM2 Energy recovery wheel motor
#2
Energy recovery section
F1A, B Fuse, control circuit transform-
er (T1), primary
Main control box
F1C Fuse, control circuit transform-
er (T1), secondary
Main control box
F2 Fuse, control circuit transform-
er (T2), primary
Main control box
F3 Fuse, burner blower motor Main control box
FB31–40 Fuseblock, electric heat (top
bank)
Electric heat box
FB41–50 Fuseblock, electric heat (bot.
bank)
Electric heat box
FD Flame detector Heat section, gas
FLC Fan limit control Heat section, gas
FP1, 2 Frost protection, refrig. circuits Coil section, cool
FS1, 2 Freezestat control Coil section, heat/cool
FSG Flame safeguard Gas heat box
GCB1 Generic condenser board, re-
frig. circ.
Main control box
GFR1, 2 Ground fault relay Main control box
GFS1, 2 Ground fault sensor Main control box
GRD Ground All control boxes
GV1 Gas valve, pilot Heat section, gas
GV2 Gas valve, main/safety Heat section, gas
GV3 Gas valve, redundant/safety Heat section, gas
GV4–8 Gas valve, main, hi turn down Heat section, gas
HL1–10 Hi-limits, pwr, elec heaters
(top bank)
Heat section, electric
HL11–20 Hi-limits, pwr, elec heaters
(bot. bank)
Heat section, electric
HL22 Hi-limits, gas heat (pre-filters) Supply fan section
HL23 Hi-limits, gas heat (final filters) Final filter section
HL31–40 Hi-limits, ctl. elec heaters (top
bank)
Heat section, electric
HL41–50 Hi-limits, ctl. elec heaters (bot.
bank)
Heat section, electric
HP5 Hi-pressure controls, gas Heat section, gas
HS1 Heat switch, electric heat
shutdown
Main control box
HS3 Heat switch, electric heat
deadfront interlock
Electric heat box
HTR65 Heater, sump Evap. condenser section
HTR66 Heater, vestibule Evap. condenser vestibule
HUM1 Humidstat sensor Energy recovery section
IT Ignition transformer Gas heat box
LAT Leaving air temperature sen-
sor
Energy recovery section
LP5 Low-pressure control, gas Heat section, gas
LR10 Line Reactor, supply fan Inverter bypass box
LR20 Line reactor, return/exhaust
fan
Inv. bypass/main cont. box
LS1, 2 Limit switch, low fire, high fire Gas heat box
LT10–23 Light, cabinet sections Supply fan section
M10 Contactor, supply fan Main control box
M20 Contactor, return fan Main control box
M29 Contactor, burner motor Gas heat box
M30 Contactor, reversing, invertor
bypass, supply fan
Inverter bypass box
M31–39 Contactor, electric heat (top
bank)
Electric heat box
M40 Contactor, reversing, Invertor
Bypass, Return Fan
Inverter bypass box
ID Description Standard location

McQuay RDS 800C Specifications

General

Brand	McQuay
Model	RDS 800C
Category	Air Handlers
Language	English