Replacement Parts List

MODEL 1710A/1750A/1770A MODEL 1700/1710/1720/1750/1770
NO. PART DESCRIPTION QTY/CTN PART NO. PART NO.
1 Filter 1 4510 4510
2 Drain Trap/Collars/Manual 1 4843 4843
3
Backflow Damper
5
1 4918 4918
Blower/Motor Assembly, 1710A/1750A and 1700/1710/1750 1 4515 4515
Blower/Motor Assembly, 1770A and 1720/1770 1 4646 (Obsolete) 4646 (Obsolete)
5A Power Supply Board 4517
5B Power Supply Board (New Style Without Integrated Transformer) N/A
6
Control Board Kit
6
1 5353 5353
7 Sensor Board 1 4752 4752
8 Duct Collars 2 4751 4751
9 Drain Trap and PVC Elbow 1 4842 4842
10 Condensate Drain Hose Assembly (Included with Model 1710A Only) 1 4863 N/A
11 LED Control Door 1 4864 4864
12 10 VA Transformer 1 5262 5262
13A Capacitor, 60MFD (Model 1770A Only) 1 5255 N/A
13B Capacitor, 55MFD 1 4922 N/A
14 Daughter Board 1 5264 N/A
15 High Temperature Cutout Switch 1 4924 N/A
16A Compressor Overload Switch, 1710A/1750A 1 5324 N/A
16B Compressor Overload Switch, 1770A 1 5325 N/A
17 Frost Sensor 1 5422 N/A
OTHER PARTS (NOT SHOWN)
External Control
7
17670
Convertible Installation Kit (2-N/O 8" Damper, 2-N/C 8" Damper and Transformer) 1 4522 4522
Distributor and Nozzle, 1710A/1750A (Obsolete) 1 4903 N/A
Low Profile Condensate Pump (Condensate Pump with 20' Condensate Hose) 1 4856 4856
Living Space Duct Kit (25' Of 8" Insulated Flex Duct With 2 Quick Install Grilles)
1 4857 4857
Living Space Duct Kit (25' of Insulated Flex Duct With 2 Quick Install Grilles and 2 Reducers) 1 5546 5546
5
The Backflow Damper (Part No. 4918) is Compatible with All Models 1730A, 1770A, but Only with Model 1750A with Serial Numbers Greater than 2610AA147015.
6
If Control Board being Replaced is Currently Used with a Model 70 Control, the Control Must be Replaced with a Model 76 Control.
7
Only use a Model 70 Control to Replace an Existing Model 70 Control with Units Produced Before Serial Number 4610AAXXXXXX.
NO. PART DESCRIPTION COMPATIBLE WITH QTY/CTN PART NO.
5A Power Supply Board Control Board without DH Terminal 1 4517
5B Power Supply Board (New Style without Integrated Transformer)
Control Board with DH Terminal
8
1 5260
8
DH Terminal Implemented on All Units with Serial Number 4610AAXXXXXX or Later.
Printed in the USA
Form 810B+A30:E8A1:E82 © 2020 Aprilaire - Division of Research Products Corporation
PO Box 1467 • Madison, WI 53701-1467 • Phone: [phone] • Fax: [phone] • www.AprilairePartners.com
Identifying Type of Control by Terminal Block
Model 1710A/1750A/1770A Dehumidifiers
4
Table 1: Power Supply Board Part Number
See Table 1 Below