Aprilaire 1750A Service Manual

Wire
Routing
Port
Wiring
Access
Filter
A
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Humidity
C
ontrol Inlet
Drain
On/Off
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Service
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ccess PortOutlet
Installation, Safety & Maintenance Manual
Model 1750A/1770A
Central Dehumidifier
INSTALLER – PLEASE NOTE!
1. Installation must conform to all applicable codes.
2. For the 1750A, a dedicated 15 Amp circuit is recommended but not required for proper operation of the
dehumidifier. If a dedicated circuit is not available, use a lightly loaded circuit. Do not use an extension cord.
3. For the 1770A, a dedicated 20 Amp circuit is required for proper operation of the dehumidifier.
If a dedicated circuit is not available, do not install unit. Dehumidifier must be plugged in directly to an outlet.
Do not use an extension cord.
4. For protection of the compressor, unit must be transported and installed in an upright position.
If the unit was shipped or stored on its side, a 24 hour settling period is required before running the unit.
TABLE OF CONTENTS
Safety Instructions . . . . . . . . . . . . . . .2
Overview . . . . . . . . . . . . . . . . . . . . . . .2
Specifications . . . . . . . . . . . . . . . . . . .2
Location Notes . . . . . . . . . . . . . . . . . .2
Ducting . . . . . . . . . . . . . . . . . . . . . . . .3
Drain Line . . . . . . . . . . . . . . . . . . . . . .3
Hanging . . . . . . . . . . . . . . . . . . . . . . .3
Installations
Central . . . . . . . . . . . . . . . . . . . . . . . .4
Localized . . . . . . . . . . . . . . . . . . . . . . .6
Central/Zoned . . . . . . . . . . . . . . . . . . .8
Air Cycling . . . . . . . . . . . . . . . . . . . .10
Float Switch . . . . . . . . . . . . . . . . . .12
Dip Switch Definitions . . . . . . . . . . .12
System Checkout . . . . . . . . . . . . . . .13
Troubleshooting . . . . . . . . . . . . . . . .14
Sequences
of Operations . . . . . . . . . . .Back Cover

Aprilaire 1750A Specifications

General

Brand	Aprilaire
Model	1750A
Category	Dehumidifier
Language	English