Specifications

Manual 2100-588A
Page 16 of 29
FIGURE 9
BASIC A/C with OPTIONAL ELECTRIC HEAT
OLDER EIFM STYLE ECONOMIZER
A
1
2
C W1G
WIRING HARNESS
TERMINAL BLOCK
Y1
EIFM ECONOMIZER
3
E
UNIT 24V
F
Y2 W2R Y
FACTORY INSTALLED JUMPER FOR IMMEDIATE EMERGENCY SHUTDOWN
OF ALL HVAC OPERATIONS, REMOVE JUMPER AND CONNECT NORMALLY
CLOSED (NC) CONTACT TO R AND RT TERMINALS.
OPEN OR SPECIAL USE AS REQUIRED
N.C. CONTACT
COMPRESSOR
ECONOMIZER STAGE 1
BLUE
COMMON
BLACK
ALARM RELAY
ELECTRIC HEAT STAGE 1
ORANGE
FACTORY INSTALLED JUMPER. REMOVE FOR 2-STAGE OPERATION
FAN (BLOWER)
VENTILATION INPUT (IF EQUIPPED)
N.O. CONTACT
BLACK
ON UNITS WITH 15 OR MORE KW.
24V TRANSFORMER OUTPUT
IF EQUIPPED
PINK
OPEN OR SPECIAL USE AS REQUIRED
24V HOT
ELECTRIC HEAT STAGE 2
YELLOW
PURPLE
24V COMMON (GROUNDED)
ECONOMIZER STAGE 2
1
1
"J" MODULE REFRIGERANT
DEHUMIDIFICATION (IF EQUIPPED)
Rt
D
2
2
MIS-2980 A