
DIAGRAM 1 - Two Transformers Serving Two Zones
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| DAMPER TRANSFORMER | ||
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| SIZING | ||
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| ZONE 2 | TRANSFORMER | MAX. NO. OF | |
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| VA RATING |
| DAMPERS | |
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| DAMPERS |
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| 40 VA |
| 4 | ||||
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ZONE A DAMPER |
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| 50 VA |
| 5 | |
TRANSFORMER |
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| 5 | 4 | 3 | 2 | 1 |
| 75 VA |
| 7 | |
SIZE FOR TOTAL NUMBER OF |
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| 100 VA |
| 10 | |
DAMPERS WIRED TO ZONE A |
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| ZONE A |
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DAMPER OUTPUTS |
| DAMPERS |
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120 | 24 |
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| SINGLE |
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| DAMPER | |
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| MOTOR | ||||
VAC | VAC | POWER POWER A B | SINGLE | SUPPLY |
| ZONE A | ZONE A | |||||
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| ZA | NO | DAMPER DAMPER |
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| COMNC NO COM NC NO | |||
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| C | |||
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| ZONE B |
| NO | |||||
120 | 24 |
| SEPARATE |
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| ZB | C | |||
VAC | VAC |
| SUPPLIES |
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| ZONE B | |||||||
ZONE B DAMPER |
| ZONE B |
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| ZONEZONE43 | ||||
TRANSFORMER |
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| ZONE 2 | DAMPER | COM NC NO | ||
SIZE FOR TOTAL NUMBER OF |
| DAMPERS |
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| SPARE FUSE | |||||
DAMPERS WIRED TO ZONE B |
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| 5 | 4 | 3 | 2 | 1 | |||||
DAMPER OUTPUTS |
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| 8028 DAMPER POWER | ZONE 1 | DAMPER | COM NC NO |
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| DISTRIBUTION PANEL | |||
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| ZONE PANEL |
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| ZONE 1 DAMPERS |
| WIRE ZONE PANEL ACCORDING | ||||||||||
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| TO THE INSTRUCTIONS PROVIDED | |||||||||||
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| (“home run” wiring) |
| WITH THE ZONE PANEL |
DIAGRAM 2 - One Transformer Serving Two Zones
DAMPER
TRANSFORMER
TWO ZONE SYSTEMS:
SIZE USING THE ZONE WITH THE MOST DAMPERS
SYSTEMS W/MORE THAN 2 ZONES:
SIZE USING TOTAL DAMPERS IN BOTH ZONES
12024
VAC VAC
SET SWITCH
FOR SINGLE
WIRE DAMPERS AS SHOWN IN DIAGRAM 1
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| 5 | 4 | 3 | 2 | 1 |
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| ZONE A |
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| DAMPERS |
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| SINGLE |
| ZONE A | ||
POWER A | SINGLE | SUPPLY |
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| ZA | |
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POWER B |
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| ZONE B | ||
| SUPPLIES |
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| ZB | |
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| SEPARATE |
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ZONE A
NO
C
NO
C
ZONE B
ZONE 1 ZONE 2 ZONE 3 ZONE 4
DAMPER | COM NC NO |
DAMPER | COM NC NO |
DAMPER | COM NC NO |
DAMPER | COM NC NO |
SUPPLY AND WIRE TO SINGLE (POWER A)
INPUTS
ZONE B | ZONE PANEL |
DAMPERS | WIRE ZONE PANEL |
SPARE FUSE | ACCORDING TO THE |
5 4 3 2 1 | |
8028 DAMPER POWER DISTRIBUTION PANEL | INSTRUCTIONS PROVIDED |
WITH THE ZONE PANEL |
DIAGRAM 3 - Two Transformers Serving One Zone
ZONE A DAMPER |
| WIRE DAMPERS AS SHOWN IN DIAGRAM 1 |
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| INSTALL JUMPERS | |||
TRANSFORMER |
| 5 | 4 | 3 | 2 | 1 | |||
| BETWEEN ZONE A AND | ||||||||
SIZE FOR TOTAL NUMBER OF |
| ZONE A |
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DAMPERS WIRED TO ZONE A |
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| ZONE B INPUTS | |||
DAMPERS |
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DAMPER OUTPUTS |
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| SINGLE |
| ZONE A |
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120 | 24 | SINGLE | SUPPLY |
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| ZONE A | |||
VAC | POWER A |
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| ZA | C |
VAC |
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| NO | ||
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| POWER B |
| SUPPLIES |
| ZONE B |
| NO | ||
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| ZONE B | ||
120 | 24 |
| SEPARATE |
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| ZB | C |
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VAC | VAC |
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ZONE B DAMPER |
| ZONE B |
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TRANSFORMER |
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DAMPERS |
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| SPARE FUSE | ||||
SIZE FOR TOTAL NUMBER |
| 5 | 4 | 3 | 2 | 1 | |||
OF DAMPERS WIRED TO |
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ZONE B DAMPER OUTPUTS |
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8028 DAMPER POWER DISTRIBUTION PANEL
ZONE 4 | DAMPER | COM NC NO |
ZONE 3 | DAMPER | COM NC NO |
ZONE 2 | DAMPER | COM NC NO |
ZONE 1 | DAMPER | COM NC NO |
ZONE PANEL
WIRE ZONE PANEL ACCORDING TO THE INSTRUCTIONS PROVIDED WITH THE ZONE PANEL
10006652 | 08.05 | PO Box 1467 • Madison, WI |
B2203856A |
©2005 Research Products Corporation Printed in USA