I TO Hum_dilier Leads
I To Hum_dff_e r Leads
I
-_ To HUMTerminal On I
I
Furnace Conirol Board
Fig. 33 - Field-supplied Isolation Relay for Humidifiers with Internal Power Supply
Al1157
H
.... FIELD 24-VOLT WIRING
.... FIELD 115-, 208/230-, 460-VOLT WIRING
-- FACTORY 24-VOLT WIRING
FACTORY 115-VOLT WIRING
NOTE 2
208/230- OR
460-VOLT
TERMINAL
BLOCK
FURNACE
CONDENSING
UNIT
NOTES: 1. Connect Y/Y2-terminal as shown for proper operation.
2. Some thermostats require a "C" terminal connection as shown.
3. If any of the original wire, as supplied, must be replaced, use
same type or equivalent wire.
Fig. 34 - Typical Two-Stage Field Wiring Diagram
A11401
36