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→ Fig. 29—Typical Fan Coil With 2-Speed Heat Pump
A97310
RH
G
W2
W1
Y1
Y2
O
B
RC
2-SPEED
HEAT PUMP
TYPICAL
FAN COIL
C
G
W2
Y/Y2
R
C
W3
L
E
Y1
R
W2
O
W3
Y1
Y2
O
TWO-ZONE SYSTEM
See notes 1, 2, 3, 9, and 11
*
*
*
*
*
→ Fig. 30—FK4C Fan Coil With 2-Speed Heat Pump
A97311
FK4C
FAN COIL
R
R
G
W1
C
DH
W2
Y1
Y/Y2
O
C
W2
Y1
Y2
RH
G
W2
W1
Y1
Y2
O
B
RC
2-SPEED
HEAT PUMP
TWO-ZONE SYSTEM
J1 JUMPER
J2 JUMPER
O
W3
See notes 1, 2, 9, and 11
→ WIRING DIAGRAM NOTES
1. Refer to fan coil Installation Instructions for proper wiring.
2. Refer to outdoor unit Installation Instructions for latent kit requirements.
3. Terminals marked with * may not be present on equipment.
4. Interface control transformer must be in phase with furnace transformer to get high-speed fan during heat pump operation.
5. Heat pump MUST have a high-pressure switch for dual-fuel applications.
6. Two-Zone Control does not know that dual fuel is applied. Do not use thermostat AUTO CHANGEOVER mode with dual-fuel
applications, keep both thermostats in same mode (heating or cooling).
7. Configure Two-Zone Control board (jumpers) for:
(J1) T-stat = Fnc
(J3) Equipmt = HP
(J4) Fnc Ht = w/fan
(J5) LAT = Set LAT jumper high enough to allow furnace to come on during defrost and second-stage operation.
(J7) DTO = On
8. Furnace must control its own second-stage heat operation, via the furnace control algorithm.
9. Refer to outdoor equipment Installation Instructions for proper set up.
10. Select Furnace Interface option, Balance Point, and Defrost Time on 2-speed heat pump control board.
11. DO NOT select "ZONE" position on 2-speed heat pump control board. In heating mode, heat pump outdoor temperature sensor will control
the compressor low- and high-speed change.
Copyright 1997 CARRIER Corp. • 7310 W. Morris St. • Indianapolis, IN 46231 zkit8si
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Book 1144
Tab 3a 5a 2a 5a
PC 101 Catalog No. 809-500 Printed in U.S.A. Form ZONEKIT-8SI Pg 16 6-97 Replaces: ZONEKIT-2SI