Replacement Parts
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 1 4918 4918
4
 Blower/Motor Assembly, 1710A/1750A  and 1700/1710/1750 1 4515 4515
 Blower/Motor Assembly, 1770A and 1720/1770 1 4646 4646
5A  Power Supply Board
See Terminal Block Drawing 90-1976 Below
4517
5B  Power Supply Board (new style without integrated transformer) N/A
6  Control Board Kit *** 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  Filter Door ** 1 4861 N/A
11  Condensate Drain Hose Assembly (included with Model 1710A only) 1 4863 N/A
12  LED Control Door 1 4864 4864
13  10 VA Transformer 1 5262 5262
14A  Capacitor, 60µF (Model 1770A only) 1 5255 N/A
14B  Capacitor, 55µF  1 4922 N/A
15  Daughter Board 1 5264 N/A
16  High Temperature Cutout Switch 1 4924 N/A
17A  Compressor Overload Switch, 1710A/1750A 1 5324 N/A
17B  Compressor Overload Switch, 1770A 1 5325 N/A
18  Frost Sensor 1 5422 N/A
New!
OTHER PARTS
 External Control **** 1 76 70
 Convertible Installation Kit (2-N/O 8" Damper, 2-N/C 8" Damper and Transformer) 1 4522 4522
 Distributor and nozzle, 1710A/1750A 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
New!
** Part 4861 is the blue/gray door; the almond colored doors are no longer available.
*** If control board being replaced is currently used with a Model 70 Control, the control must be replaced with a Model 76 Control.
**** Only use a Model 70 Control to replace an existing Model 70 control with units produced before Serial Number 4610AAXXXXXX.
Table 1: Power Supply Board Part Number          Models 1710A, 1750A & 1770A
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) 1 5260
 Backflow Damper *
* The backflow damper (Part No. 4918) is compatible with all Models 1730A, 1770A, but only with Model 1750A with Serial Numbers greater than 2610AA147015.
Control Board with DH Terminal
1
1
 DH Terminal implemented on all units with Serial Number 4610AAXXXXXX or later.
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 1 4918 4918
4
 Blower/Motor Assembly, 1710A/1750A  and 1700/1710/1750 1 4515 4515
 Blower/Motor Assembly, 1770A and 1720/1770 1 4646 4646
5A  Power Supply Board
See Terminal Block Drawing 90-1976 Below
4517
5B  Power Supply Board (new style without integrated transformer) N/A
6  Control Board Kit *** 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  Filter Door ** 1 4861 N/A
11  Condensate Drain Hose Assembly (included with Model 1710A only) 1 4863 N/A
12  LED Control Door 1 4864 4864
13  10 VA Transformer 1 5262 5262
14A  Capacitor, 60µF (Model 1770A only) 1 5255 N/A
14B  Capacitor, 55µF  1 4922 N/A
15  Daughter Board 1 5264 N/A
16  High Temperature Cutout Switch 1 4924 N/A
17A  Compressor Overload Switch, 1710A/1750A 1 5324 N/A
17B  Compressor Overload Switch, 1770A 1 5325 N/A
18  Frost Sensor 1 5422 N/A
New!
OTHER PARTS
 External Control **** 1 76 70
 Convertible Installation Kit (2-N/O 8" Damper, 2-N/C 8" Damper and Transformer) 1 4522 4522
 Distributor and nozzle, 1710A/1750A 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
New!
** Part 4861 is the blue/gray door; the almond colored doors are no longer available.
*** If control board being replaced is currently used with a Model 70 Control, the control must be replaced with a Model 76 Control.
**** Only use a Model 70 Control to replace an existing Model 70 control with units produced before Serial Number 4610AAXXXXXX.
Table 1: Power Supply Board Part Number Models 1710A, 1750A & 1770A
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) 1 5260
 Backflow Damper *
* The backflow damper (Part No. 4918) is compatible with all Models 1730A, 1770A, but only with Model 1750A with Serial Numbers greater than 2610AA147015.
Control Board with DH Terminal
1
1
 DH Terminal implemented on all units with Serial Number 4610AAXXXXXX or later.
Model 1710A/1750A/1770A Model 1700/1710/1720/1750/1770
NO. PART DESCRIPTION QTY/CTN PART NO. BASE PRICE PART NO. BASE PRICE
1  Filter 1 4510
43.95 
ea. 4510
43.95 
ea.
2  Drain Trap/Collars/Manual 1 4843
63.60 
ea. 4843
63.60 
ea.
3 1 4918
7.95 
ea. 4918
7.95 
ea.
4
 Blower/Motor Assembly, 1710A/1750A  and 1700/1710/1750 1 4515
521.15 
ea. 4515
521.15 
ea.
 Blower/Motor Assembly, 1770A and 1720/1770 1 4646
828.45 
ea. 4646
828.45 
ea.
5A  Power Supply Board
See Table 1 Below
4517
181.70 
ea.
5B  Power Supply Board (new style without integrated transformer) N/A N/A
6  Control Board Kit *** 1 5353
253.95 
ea. 5353
253.95 
ea.
7  Sensor Board 1 4752
44.30 
ea. 4752
44.30 
ea.
8  Duct Collars 2 4751
51.10 
ea. 4751
51.10 
ea.
9  Drain Trap and PVC Elbow 1 4842
13.65 
ea. 4842
13.65 
ea.
10  Filter Door ** 1 4861
36.35 
ea. N/A N/A
11  Condensate Drain Hose Assembly (included with Model 1710A only) 1 4863
31.80 
ea. N/A N/A
12  LED Control Door 1 4864
33.90 
ea. 4864
33.90 
ea.
13  10 VA Transformer 1 5262
27.10 
ea. 5262
27.10 
ea.
14A  Capacitor, 60µF (Model 1770A only) 1 5255
54.10 
ea. N/A N/A
14B  Capacitor, 55µF  1 4922
52.20 
ea. N/A N/A
15  Daughter Board 1 5264
38.00 
ea. N/A N/A
16  High Temperature Cutout Switch 1 4924
37.50 
ea. N/A N/A
17A  Compressor Overload Switch, 1710A/1750A 1 5324
32.25 
ea. N/A N/A
17B  Compressor Overload Switch, 1770A 1 5325
32.25 
ea. N/A N/A
OTHER PARTS
 External Control **** 1 76
138.80 
ea. 70
105.65 
ea.
 Convertible Installation Kit (2-N/O 8" Damper, 2-N/C 8" Damper and Transformer) 1 4522
574.50 
ea. 4522
574.50 
ea.
 Distributor and nozzle, 1710A/1750A 1 4903
96.50 
ea. N/A N/A
 Low Profile Condensate Pump (condensate pump with 20' condensate hose) 1 4856
104.50 
ea. 4856
104.50 
ea.
 Living Space Duct Kit (25' of 8" insulated flex duct with 2 quick install grilles) 1 4857
309.30 
ea. 4857
309.30 
ea.
** Part 4861 is the blue/gray door; the almond colored doors are no longer available.
*** If control board being replaced is currently used with a Model 70 Control, the control must be replaced with a Model 76 Control.
**** Only use a Model 70 Control to replace an existing Model 70 control with units produced before Serial Number 4610AAXXXXXX.
Table 1: Power Supply Board Part Number          Models 1710A, 1750A & 1770A
NO. PART DESCRIPTION Compatible With QTY/CTN PART NO. BASE PRICE
5A Power Supply Board Control Board without DH Terminal 1 4517 181.70  ea.
5B Power Supply Board (new style without integrated transformer) 1 5260 98.30  ea.
 Backflow Damper *
* The backflow damper (Part No. 4918) is compatible with all Models 1730A, 1770A, but only with Model 1750A with Serial Numbers greater than 2610AA147015.
Control Board with DH Terminal
1
1
 DH Terminal implemented on all units with Serial Number 4610AAXXXXXX or later.
A
B
C/-
R/+
DH
DH
DH
DH
R
C
A
B
+
-
MODEL 70 MODEL 75 MODEL 76
90-1976
90-1976
Identifying Type of Control by Terminal Block




