Aprilaire 4517 Manuel utilisateur

! WARNING

1. 120-Volts can cause serious injury or death. Unplug the dehumidifier before servicing.

! CAUTION

1. Failure to follow installation instructions can result in damage to the dehumidifier. Service is to be performed only by qualified

HVAC contractors and technicians.

REMOVE THE EXISTING BOARD

1. TURN THE ON/OFF SWITCH OFF, ROTATE

THE CONTROL KNOB TO OFF AND UNPLUG

THE UNIT BEFORE SERVICING. LEAVE

UNPLUGGED UNTIL REPLACEMENT IS

COMPLETE.

2. Remove the filter door and side panel from the right

side of the unit (power switch is to the left when

viewing the right side of the unit –see Figure 1). Set

both aside.

3. Disconnect the 120-volt connections from the power

board (see Figure 2). Use a pliers to remove the quick

disconnect terminals straight out. If terminals must be

“wiggled” to remove, use as little side to side

movement as possible –too much wiggling can cause the terminal to

pull out of the board.

4. Remove the two screws securing the power board mounting

bracket to the dehumidifier.

5. Disconnect the ribbon cable.

6. Models 1710A, 1750A & 1770A only –Remove the two (2) black

limit switch leads and the daughter board from the power board –

it will be reinstalled on the replacement power board (see Figure

3).

7. Remove the remaining screws securing the power board to the

mounting bracket.

Installer Note: There is a plastic spacer between the board and

mounting bracket secured by the large center mounting screw –

this must be reused to mount the replacement board.

INSTALL THE NEW POWER BOARD

1. Secure the replacement board to the mounting bracket

using three (3) smaller screws and one large center

screw.

Important: Install the white spacer between the board

and mounting bracket when installing the large center

screw.

2. Models 1710A, 1750A & 1770A only –Align the

daughter board socket with the pins on the power

board and secure the daughter board with the

remaining small mounting screw.

MODEL 4517 POWER BOARD

REPLACEMENT INSTRUCTIONS

Figure 1- Right Side View

Figure 3 –Power Board Connections

Figure 2 - Power Board Installed in Dehumidifier

3. Models 1710A, 1750A & 1770A only –Reconnect the two (2) black limit switch leads.

4. Reconnect the ribbon cable. The ribbon cable must be properly oriented with the pin header.

5. Secure the power board mounting bracket to the dehumidifier using two (2) screws.

6. Reconnect the power, blower and compressor wires to the power board. Ensure that the quick connect terminals are fully

engaged.

IMPORTANT: The power, blower and compressor wires are color coded, make sure the proper colored wire is attached to the

terminal with the corresponding color label.

7. Install the side panel and filter door.

TEST THE DEHUMIDIFIER

1. Plug in the dehumidifier and turn the ON/OFF switch ON.

2. Rotate the control knob to TEST.

3. The blower will turn on after a few seconds and the green Status light will flash. Three minutes after the blower turns on, the

compressor will start and the Status light will be on continuously –allow the compressor to run for a few minutes.

4. Adjust the control to the desired setting.

TROUBLESHOOTING

PROBLEM

CAUSE

SOLUTION

Blower does not turn on and Status

LED does not flash

No power at outlet

Check the fuse/circuit breaker serving the outlet into which the

dehumidifier is plugged

Control not in Test mode

Rotate the knob to OFF then back to Test mode –rotate until you

hit the stop

Control is not powered

Check the ribbon cable connection at the power board and

control board. Remove the Control Knob and the screw securing

the Control Door to view the ribbon cable connection on the

control board

LED flashes but blower does not turn

on.

Blower wire(s) not

connected on power board

Check that the yellow and blue wires are connected to the

terminals labeled “NTRL. YEL.” and “FAN BLU.” terminals on

the power board

Compressor does not start and Status

LED continues to flash

Three minute sampling

period has not expired

Wait for three (3) minutes after the blower has started

Compressor does not start and Status

LED is lit continuously

Compressor wire(s) not

connected on power board

Check that the orange and brown wires are connected to the

terminals labeled “NTRL. ORG.” and “COMPR, BRN.”

terminals on the power board.

Black leads not connected

on daughter board

Ensure that both leads are securely connected to the terminals on

the daughter board.

Compressor does not turn off when

control is adjusted out of TEST and

Status LED remains on

Compressor stays on for a

6-minute minimum on time

Wait for 6 minutes.

PO Box 1467 Madison, W1 53701-1467 Phone 800/334-6011 Fax 608/257-4357 www.aprilairepartners.com

10009180

B2205278A

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