INSTALLATION
Remove both access panels. | SELECTING THE BLOWER OFF DELAY |
For GMP & GMPV series units, cut the white jumper wire between pins 1 & 4 of the 9 pin connector.
For GMPN & GMN series units, DO NOT cut the white jumper wire.
Remove the edgecard connector and other wires from the existing module. Discard the thermostat wires re- moved from the board (R, W & G).
Remove the existing HSI module. Care should be exer- cised as not to damage the nylon standoffs.
Install the
Reconnect the edgecard connector making sure of good contact.
Push the 9 pin connector into the HSI module. It can go in only one way. DO NOT force.
Reconnect the supplied thermostat wires.
Remove the red wire from the 24 volt side of the secondary side of the transformer and discard.
Remove the blue ground wire from the transformer. DO NOT discard.
Remove the blue wire from the transformer and discard.
Place the red wire from the 9 pin connector on to "24 volt" of the secondary side of the transformer.
Place the blue wire from the 9 pin connector on to "Common" terminal of the secondary side of the transformer. This wire has a piggy back terminal.
Place the blue ground wire, which was previously re- moved, on to the "Common" terminal of the trans- former.
In the heating mode, the blower off delay can be selected to obtain a 90, 120 or 150 seconds period. This can be accomplished by changing the position of a plastic jumper located on the ignition control. See the drawing below for the location of this jumper.
TWIN
BLOWER |
|
|
TIME OFF | STATUS |
|
|
| |
JUMPER | 90 |
|
|
| |
| 120 | P3 |
| 150 |
|
| W |
|
| G |
|
| R |
|
The control is factory set to give a (150) second blower off delay. See drawing below for the jumper position for all available settings:
STATUS |
| STATUS |
| STATUS |
| |||
90 |
|
| 90 |
|
| 90 |
|
|
|
|
|
|
| ||||
120 |
| P3 | 120 |
| P3 | 120 |
| P3 |
|
| |||||||
150 |
|
| 150 |
|
| 150 |
|
|
JUMPER SET | JUMPER SET | JUMPER SET | ||||||
FOR 90 SEC. | FOR 120 SEC. | FOR 150 SEC. | ||||||
Notes:
Black
115v. Supply
White
24 v. Red
Com. Blue
GND. Blue
TRANSFORMER
• If the jumper is removed, the control will default to a |
(150) second blower off delay in the heating mode. |
• The blower on time in the heating mode is (30) |
seconds and is |
• The blower on time in the cooling mode is (7) seconds |
and is |
• The blower off delay in the cooling mode is (60) |
seconds and is |
• Caution is to be exercised not to bend the metal pins |
Replace the access panels.
Restore gas and electrical power to the furnace.
Verify the sequence of operation as noted in the Installa- tion & Operating Instructions.
The Emerson logo is a trademark and a service mark of Emerson Electric Co.
when changing the time delay from the factory setting. |
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