TWO-STAGE COOLING WIRING
CONTROL WIRING - Air Handler & New UPG HP Systems
Two Stage H/P with York Guard VI Board & Copeland “Ultra Tech”
Conventional Application - Not Hot Heat Pump
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| AIR HANDLER |
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| 2 - STAGE SCROLL | ||||
THERMOSTAT |
| BOARD |
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| HEAT PUMP | |||||
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| R |
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| R |
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| R |
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| G |
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| Y2 |
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| Y2 |
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| Y / Y2 |
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| Y2 OUT |
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| Y1 |
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| Y1 |
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| Y1 |
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| W2 |
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| W2 OUT |
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| E |
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| W1 |
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| W1 OUT |
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| W |
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| W |
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| O |
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| O |
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| O |
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| HUM |
| HUMIDISTAT * |
| BS |
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| X / L |
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| X / L |
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| X / L |
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| C |
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| COM |
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* Optional dehumidification humidistat switch contacts open on humidity rise.
NOTES:
1.“Y/Y2” Terminal on air handler control board must be connected for full CFM and applications requiring 60 second blower off delay for SEER enhancement.
2.Remove humidistat jumper on air handler control board.
3.For heat pump applications - set MODE jumper on air handler control board to the HP position.
4.To change quantity of heat during HP defrost cycle - reverse connections at W1 and W2 on air handler control board.
TYPICAL APPLICATIONS
HORIZONTAL RIGHT
UPFLOW
DOWNFLOW
HORIZONTAL LEFT
Subject to change without notice. Printed in U.S.A. | |
Copyright © 2008 by Johnson Controls, Inc. All rights reserved. | Supersedes: |
Johnson Controls Unitary Products
5005 York Drive
Norman, OK 73069
