*Field-supplied.
NOTES:
1. Factory wiring is in accordance with NEC. Field modifications or
additions must be in compliance with all applicable codes.
2. Wiring for field power supply must be rated 75 C minimum. Use
copper, copper-clad aluminum, or aluminum conductors. Maxi-
mum incoming wire size for each terminal block is 500 kcmil.
3. Terminal blocks TB3 and TBX1 are for external field control con-
nections. Control connections are to be Class 1 wiring.
4. Field-suppliedcomponents(IFC,LLS-A1andA2)musthaveamaxi-
mum sealed coil rating of 30 va each (0.25 amp at 120 vac,
0.13 amp at 230 vac). AHMS IFC-AUX contact must have mini-
mum pilot duty rating of 400 va each (3.4 amps at 120 vac,
1.8 amps at 230 vac).
5. Replacement of factory wires must be with type 105 C wire or its
equivalent.
6. Field-supplied liquid line solenoid valves installed at the evapora-
tor are required on all units.
7. Units have 175 va of power available for field-installed
accessories.
LEGEND
AHMS — Air Handler Motor Starter
AUX — Auxilliary
C—Compressor Contactor
FU — Fuse
GND — Equipment Ground
IFC — Indoor Fan Control
kcmil — Thousand Circular Mils
LLS — Liquid Line Solenoid
NEC — National Electrical Code
(U.S.A. Standard)
SDR — Solenoid Drop Relay
TB — Terminal Block
TBX — Terminal Block for Variable
Air Volume Units
TM — Timer Motor
TR — Timer Relay
TRAN — Transformer
U—Unloader Solenoid
Factory Wiring
Field Wiring
Fig. 28 — Field Wiring, Single ModuPanel™ Control, Units 38AH124 and 134
36
