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64
IM 738-2
Wiring Diagrams:
Legend
RAE
Return air enthalpy sensor
Return section
RAT
Return air temperature sensor Return section
REC1
Receptacle, main box
Main control box
REC2
Receptacle, condenser box
Condenser control box
REC3
Receptacle, field power, 115V Discharge bulkhead
REC10–
23
Receptacle, cabinet sections
Cabinet sections
S1
Switch, system on/off
Main control box
S2
Switch, system on/off,
condenser unit
Condenser control box
S3
Switch, furnace on/off
Gas heat box
S4
Switch, inverter bypass, on/ off Main control box
S7
Switch, local on/auto/off to
controller
Main control box
S10–23
Switches, cabinet section lights Cabinet sections
S40–45
Switches, door interlock, UV
lights
Cabinet sections
SC11
Speed control, circuit #1
Condenser bulkhead
SC21
Speed control, circuit #2
Condenser bulkhead
SD1
Smoke detector, supply
Discharge section
SD2
Smoke detector, return
Return section
SPS1, 2
Static pressure sensors, duct/
building
Main control box
SR1-3
Sequencing relays, electric
heat
Electric heat box
SV1, 2
Solenoid valves, liquid
Condenser section
SV5, 6
Solenoid valves, hot gas
Condenser section
SV61, 62 Solenoid valves, sump, fill
Main/RCE control box
SV63
Solenoid valves, sump, drain
Main/RCE control box
SWT
Sump water temperature
sensor
Evap. condenser section
T1
Transformer, main control (line/
115VAC)
Main control box
T2
Transformer, control input (115/
24VAC)
Main control box
T3
Transformer, control output
(115/24VAC)
Main control box
T4
Transformer, exh. damper
actuator (115/12VDC)
Main control box
T5
Transformer, electirc heat
Electric heat box
T6
Transformer, dew point
controlller (115/24VAC)
Main control box
T9
Transformer, refrig. circuit 24V Main control box
T11
Transformer, speedtrol (line/
240VAC)
Condenser section
TB1
Terminal block, internal
Main control box
TB2
Terminal block, field
Main control box
TB3
Terminal blocks, factory
Main control box
TB4
Terminal block, RFS, field
Main control box
TB5
Terminal block, RCS, field
Condenser control box
TB6
Terminal block, RCS, factory
Condenser control box
TB7
Terminal block, 115V
convenience outlet, field
Main control box
TB8
Terminal block, 115V conv.
outlet, RCS, field
Condenser control box
TB11
Terminal block, heat
Heat control box
TB23
Terminal block, oil pressure
box, RPE/RCE only
Evap. condenser vestibule
TB25, 26,
27, 28
Terminal block, split unit
junction box
Junction box, split unit
TC12, 13,
14
Temperature controls, Fantrol
Condenser section
ID
Description
Standard location
TC56
Temperature control, water
pipe heater
Evap. condenser vestibule
TC66
Temperature control, vestibule
exhaust fan
Evap. condenser vestibule
TD1, 2
Time delay, compressor
lockout
Main/cond. control box
TD3, 4
Time delay, hi-pressure
Main/cond. control box
TD5–8
Time delay, part winding,
compr #1 - 4
Main control box
TD10
Time delay, hi turn down burner Gas heat box
TD11, 12 Time delay, low ambient
Main/cond. control box
TR1, 2
Transducer, pressure
Main control box
U1, 2
Unloaders, compressors
On compressers
UV
Ultra-violet light(s)
Coil/discharge section
VM1
Valve motor #1, heating
Gas heat box/ heat section
VM5
Valve motor #5, cooling
Coil section, cool
VV1
Vent valve, gas heat
Heat Section, Gas
WL63
Water level, sump, fill
Evap. condenser section
WL64
Water level, sump, low water
Evap. condenser section
ZNT1
Zone temp. sensor, setback
Field installed
ID
Description
Standard location
200/ H200
1.
Field wiring
3.
Shielded wire/cable
4.
Main control box
terminals
5.
Auxilliary box
terminals
6.
Field terminals
7.
Plug connector
8.
Wire/harness number
General Notes
2.
Factory wiring
9.
Wire nut/ID
WN7
Summary of Contents for RDT- 036c
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