19
Legend and Notes for Fig. 5-14
LEGEND
NOTES:
1. Factory wiring is in accordance with UL (Underwriters Labora-
tories) 1995 standards. Any field modifications or additions
must be in compliance with all applicable codes.
2. Use 75 C minimum wire for field power supply.
3. All field interlock contacts must have a minimum rating of
2 amps at 24-vac sealed. See field interlock wiring diagrams in
the section Capacity Control, page 64.
4. Compressor and fan motors are thermally protected. Three-
phase motors protected against single-phase conditions.
5. Terminals 13 and 14 of LVT are for field connection of remote
on-off. The contact must be rated for dry circuit application
capable of handling a 5-vdc, 1 mA to 20 mA load.
6. For 500 series unit operation at 208-3-60 line voltage, TRAN1
primary connections must be moved to terminals H3 and H4.
7. For High SCCR or 575-3-60-v units, fan circuit breaker FCB1
and FCB2 are replaced with fuse blocks FB1 and FB2.
8. For units with low ambient Motormaster
®
V factory-installed
option or field-installed accessory:
38APD,APS025-030: Fan contactor FC1 is replaced with fan
relay FR1
38APS040-050: Fan contactor FC1 is replaced with fan relay
FR1
38APD040-060: Fan contactor FC1 is replaced with fan relay
FR1
38APD070-100: Fan contactor FC1 is replaced with fan relay
FR1
38APD070,090,100: Fan contactor FC2 is replaced with fan
relay FR2
38APD080: Fan contactor FC4 is replaced with fan relay FR2
38APD115-130: Fan contactor FC5 is replaced with fan relay
FR1; fan contactor FC2 is replaced with fan relay FR2
38APS-065: Fan contactor FC1 is replaced with fan relay FR1
9. MP-A1 not used in the following units:
38APD,APS025: All units
38APD,APS027-030: 400-v, 460-v units without digital scroll
38APS040,050 400-v, 460-v units without digital scroll
38APD040,050: All units
38APD 060: 400-v, 460-v units without digital scroll
38APD070-100: 400-v, 460-v units without digital scroll
38APD115-130: 400-v, 460-v units without digital scroll
10. MP-A2 not used in the following units:
38APD,APS025: All units
38APD,APS027,030: 400-v, 460-v units
38APS040,050 400-v, 460-v units
38APD040,050: All units
38APD 060: 400-v, 460-v units
38APD070-100: 400-v, 460-v
38APD115-130: 400-v, 460-v units
11. MP-B1 not used in the following units:
38APD,APS025: All units
38APD,APS027,030: 400-v, 460-v units
38APD40: All units
38APD050,060: 400-v, 460-v units
38APD 070: All units
38APD080-100: 400-v, 460-v
12. MP-B2 not used in the following units:
38APD,APS025-030: All units
38APD40: All units
38APD050,060: 400-v, 460-v units
38APD070: All units
38APD080-100: 400-v, 460-v
13. MP-A3 not used in the following units:
38APD,APS025-030: All units
38APS040,050 400-v, 460-v units
38APD090,100: 400-v, 460-v
38APD115-130: 400-v, 460-v units
14. MP-B3 not used in the following units:
38APD,APS025-030: All units
38APD070: All units
38APD080-100: 400-v, 460-v
15. Jumper plug required when modular motor protector is not
used.
16. High SCCR units with Motormaster controls only
17. For 380,400-v units, yellow CCH wire will connect to white neu-
tral wire instead of terminal 22 of fuse blocks.
ACCSY
—
Accessory
ALM
—
Alarm
AMPS
—
Amperes
AUX
—
Auxiliary
C
—
Contactor
CB
—
Circuit Breaker
CCB
—
Compressor Circuit Breaker
CCH
—
Crankcase Heater Relay
CH
—
Crankcase Heater
COMP
—
Compressor
CSB
—
Current Sensor Board
CXB
—
Compressor Expansion Module
DGS
—
Digital Scroll
DPT
—
Discharge Pressure Transducer
DTT
—
Discharge Temperature Thermistor
DUS
—
Digital Unloaded Solenoid
EMM
—
Energy Management Module
EQUIP GND —
Equipment Ground
FB
—
Fuse Block
FC
—
Fan Contactor
FCB
—
Fan Circuit Breaker
FIOP
—
Factory-Installed Option
FR
—
Fan Relay
FS
—
Fan Status
FU
—
Fuse
GND
—
Ground
HPS
—
High Pressure Switch
LLSV
—
Liquid Line Solenoid Valve
LVT
—
Low Voltage Terminal
MBB
—
Main Base Board
MLV
—
Minimum Load Valve
MM
—
Motormaster
MP
—
Modular Motor Protector
NEC
—
National Electrical Code
OAT
—
Outdoor Air Thermistor
OFM
—
Outdoor Fan Motor
OPT
—
Option
PL
—
Plug
RAT
—
Return Air Temperature
RGT
—
Return Gas Temperature
RLY
—
Relay
SAT
—
Supply Air Temperature
SEN
—
Sensor Terminal Block
SET
—
Set Point Terminal Block
SPT
—
Suction Pressure Transducer
SW
—
Switch
TB
—
Terminal Block
TEMP
—
Temperature
TRAN
—
Transformer
UPC
—
Unitary Protocol Converter
Y
—
Cool Stage