Carrier 59SC2A - Page 35

}———» | To HUM Terminal On
To Humidifier Leads Furnace Control Board
24V
Coit
To Com/24V Screw Terminal
[> | on Thermostat Strip
A11157
Fig. 34 - Field-supplied Isolation Relay for Humidifiers with Internal Power Supply
---- FIELD 24-V WIRING
wom= FIELD 115-, 208/230-, 460-V WIRING P
——— FACTORY 24-V WIRING i]
a FACTORY 115-V WIRING 4
ce?)
NOTE 2 Ts)
THERMOSTAT
FIVE WIRE Ww) © @) © © TERMINALS FIELD-SUPPLIED
THREE-WIRE rr rt DISCONNECT
iTch qj tt |
BLOWER DOOR SWITCH 1 ~ | 208/280- OR
‘
mL
of
PHASE
deport iol
ou eel Te BS aaa ° w) 1 f 1
hh wef 8] Qype I |
walang == do N 1 oreo 208/230-V
= | tl SINGLE
=
GND
GND
R
(@H
LL
Ppetc
e+e
-—-
+}
PHASE
. |AUXILIARY --- i |
115-V FIELD Oo - i | Bop eran
SUPPLIED _ | J-BOX L | Gow}-}------~------ 1 = GND
DISCONNECT
oO
|_----NOTEA____1
|
CONDENSING
UNIT
24.V TWO
TERMINAL WIRE
BLOCK
FURNACE NOTES: 1. Connect Y-terminal in furnace as shown for proper blower operation.
2. Some thermostats require a "C" terminal connection as shown.
3. lf any of the original wire, as supplied, rnust be replaced, use
same type or equivalent wire.
A11387
Fig. 35 - Typical Single-Stage Wiring Diagram