McQuay SWP Series User Manual

18 McQuay IM 937
Electrical Data
Figure 23: A-A Section Detail, Typical 460 Volt, 6
Compressor Control Center Layout
Electrical Legend
ID Description
Standard
location
ACT3 Actuator motor, economizer Comp/cond section
AFD10 Adjustable frequency drive,
supply fan
Front assembly
CB10 Circuit breaker, supply fan Main control box
CCB1, 2 Compressor control boards,
refrig. circuits
Main control box
DAT Discharge air temperature
sensor
Discharge section
DHL Duct hi-limit Main control box
DS1 Disconnect, total unit or cond/
heat
Main control box
DS2 Disconnect, SAF/RAF/controls Main control box
F1A, B Fuse, control circuit transformer
(T1), primary
Main control box
F1C Fuse, control circuit transformer
(T1), secondary
Main control box
FB11, 12 Fuseblock, electric heat (top
bank)
Main control box
FB13, 14 Fuseblock, electric heat (bot.
bank)
Main control box
HL11A, HL11B Hi-limits, pwr, elec heaters (top
bank)
Heat section,
electric
HL12A, HL12B Hi-limits, pwr, elec heaters (bot.
bank)
Heat section,
electric
HP1–6 Hi-pressure controls, refrig On compressors
LP1–6 Low-pressure controls,
refrigeration
On compressors
M1–6, M21–26 Contactor, compressor Main control box
M9 M10 Contactor, supply fan Main control box
M30 Contactor, reversing, VFD
bypass, supply fan
IVFD bypass box
MCB Microprocessor circuit board Main control box
MJ Mechanical jumper All control boxes
MMP1–6,
MMP21–26
Manual motor protector,
compressors
Main control box
MMP9–10 Manual motor protector, supply
fan
Main control box
MP1–6 Motor protector, compr.#1–6 On compressors
OAT Outside air temperature sensor Shipped loose
PB1, 2 Power block, power distribution Main control box
PB10 Power block, supply fan Main control box

McQuay SWP Series Specifications

General

Brand	McQuay
Model	SWP Series
Category	Air Conditioner
Language	English