→ 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.
© 1997 Bryant Heating & Cooling Systems 7310 W. Morris St. Indianapolis, IN 46231
—16—
Printed in U.S.A. zkit06 Catalog No. 809-661
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