Bryant DURAPAC 579F User Manual
Page 37
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37
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LEGEND AND NOTES FOR FIG. 46 AND 47
QT
— Quadruple Terminal
RAT
— Return Air Temperature Sensor
RS
— Rollout Switch
SN
— Sensor
SW
— Switch
TB
— Terminal Block
TC
— Thermostat Cooling
TH
— Thermostat Heating
TRAN — Transformer
Terminal (Marked)
Terminal (Unmarked)
Terminal Block
Splice
Factory Wiring
Field Wiring
Option/Accessory Wiring
To indicate common potential only;
not to represent wiring.
Economizer Motor
Remote POT Field Accessory
OAT Sensor
Disch Air Sensor
RAT Accessory Sensor
Low Ambient Lockout Switch
AHA
— Adjustable, Heat Anticipator
BRK W/AT — Breaks With Amp Turns
C
— Contactor, Compressor
CAP
— Capacitor
CB
— Circuit Breaker
CC
— Cooling Compensator
CLO
— Compressor Lockout
COMP
— Compressor Motor
CTD
— Compressor Time Delay
DM
— Damper Motor
DU
— Dummy Terminal
EQUIP
— Equipment
FU
— Fuse
GND
— Ground
HPS
— High-Pressure Switch
IAQ
— Indoor Air Quality Sensor
IDM
— Induced Draft Motor
IFC
— Indoor-Fan Contactor
IFM
— Indoor-Fan Motor
IFR
— Indoor Fan Relay
IGC
— Integrated Gas Unit Controller
L
— Light
LALS
— Low Ambient Temperature
Compressor Lockout Switch
LPS
— Low-Pressure Switch
LS
— Limit Switch
MGV
— Main Gas Valve
NEC
— National Electrical Code
OAT
— Outdoor Air Temperature Sensor
OCCUP
— Occupancy Sensor
OFC
— Outdoor Fan Contactor
OFM
— Outdoor Fan Motor
PL
— Plug Assembly
PMR
— Phase Monitor Relay
LEGEND
NOTES:
1. Compressor and/or fan motors thermally protected; three phase motors protected against primary single-
phasing conditions.
2. If any of the original wire furnished must be replaced, it must be replaced with type 90 C wire or its equiv-
alent.
3. TRAN1 is wired for 230-v operation. If unit is 208-v, disconnect the BLK wires from the ORN TRAN wire
and reconnect to the RED TRAN wire. Apply wirenuts to wires.
4. CB1, 2 Must Trip Amps are equal to or less than 156% FLA, IFCB 140%.
5. The CLO locks out the compressor to prevent short cycling on compressor overload and safety devices.
Before replacing CLO, check these devices.
6. Jumpers are omitted when unit is equipped with economizer.
7. Number(s) indicates the line location of used contacts. A bracket over (2) numbers signifies a single-pole,
double-throw contact. An underlined number signifies a normally closed contact. A plain (no line) number
signifies a normally open contact.
8. Remove jumper between RC & RH.
9. 620 Ohm, 1 watt, 5% resistor should be removed only when using differential enthalpy or dry bulb.
10. If a separate field-supplied 24-v transformer is used for the IAQ sensor power supply, it cannot have the
secondary of the transformer grounded.
11. OAT sensor is shipped inside unit and must be relocated in the field for proper operation.
12. For field-installed remote minimum position POT, remove black wire jumper between P and P1 and set
control minimum position POT to the minimum position.