Effective Date: January 1, 2019
Maintenance Kits (inc ludes parts 45 (2),4004, 4403, 4406, 4407, 4335 and 4231) 1 4788 4788
Blower Activation Relay 10 4851 4851
Model 400/400M Humidifiers
NO. BLUE/GRAY UNITS - PART NAME QTY/CTN PART NO. PART NO.
MOD EL 400 MOD EL 400M
4B Base (blue/gray) 1 4734 4734
5B Cover (blue/gray) 1 4728 4728
13B Automatic Digital Humidifier Control 1 60 N/A
16B Name Plate (blue/gray) 1 4880 4880
17B Hole Plug (blue/gray) 1 4741 4741
18B Resistor Case & Manual Mode Label 1 4737 N/A
NO. ALMOND UNITS - PART NAME QTY/CTN PART NO. PART NO.
4A Base (almond) 1 4404 N/A
5A Cover (almond) 1 4329 N/A
13A Automatic Humidifier Control 1 56 N/A
16A Name Plate (almond) 1 4409 N/A
17A Hole Plug (almond) 1 4408 N/A
18A Resistor Case & Manual Mode Label 1 4336 N/A
NO. COMMON PARTS QTY/CTN PART NO. PART NO.
1 Water Panel Evaporator 10 (5-2 pks.) 45 45
2 Scale Control Insert w/Float Chamber 6 4403 4403
3 Water Distribution Tray 1 4407 4407
6 Water Level Sensor Assembly 1 4410 4410
7 Water Solenoid Valve (24 Volt) 1 4040 4040
8 In-line Strainer 12 4004 4004
9 Saddle Valve 1 4001 4001
10 Orifice (Yellow) 144 (12-12 pks.) 4231 4231
11 Feed Tube with Strainer, Orifice, Compression Sleeve and Nut 1 4335 4335
12 Transformer 1 4010 4010
15 Damper Assembly 1 4332 4332
19 Float Assembly 1 4406 4406
20 Float Cover 1 4405 4405
24 Automatic Humidifier Control Gasket 1 4305 N/A
OTHER QTY/CTN PART NO. PART NO.
13C Manual Humidifier Control 1 N/A 4655
Outdoor Temperature Sensor 1 8052 N/A
Current Sensing Relay 1 50 50
Saddle Valve Adapter 6 4229 4229
Shock Arrestor 1 4280 4280
Humidier Adapter Plate (Ful l Carton Qty Onl y) 20 5557 5557
MODEL 500, 500A & 500M MODEL 600, 600A & 600M
Water Panel® Evaporator 10 10 35
Maintenance Kits (incl udes parts 10, 4335, 4231, 4004, 4640, 4331 and 4223) 1 4792 N/A
Maintenance Kits (incl udes parts 35, 4335, 4231, 4004, 4330, 4331 and 4223) 1 N/A 4839
Blower Activation Relay 10 4851 4851
Model 500/500M & 600/600M Humidifiers
NO. BLUE/GRAY UNITS - PART NAME QTY/CTN PART NO. PART NO.
4B Base (Blue/Gray) 1 4730 4731
5B Cover (Blue/Gray) 1 4727 4728
13B Automatic Digital Humidity Control 1 60 60
16B Name Plate (Blue/Gray) 1 4881 4882
17B Hole Plug (Blue/Gray) 1 4733 4733
18B Resistor Case & Manual Mode Label 1 N/A 4737
MODEL 500, 500A & 500M MODEL 600, 600A & 600M
NO. ALMOND UNITS - PART NAME QTY/CTN PART NO. PART NO.
4A Base (Almond) 1 4641 (Obsolete replaced by 4730) 4328 (Obsolete replaced by 4731)
5A Cover (Almond) 1 4642 4329 (Obsolete replaced by 4728)
13A Automatic Humidifier Control 1 56 56
16A Name Plate (Almond) 1 4643 4333
17A Hole Plug (Almond)
18A Resistor Case & Manual Label 1 4336 4336
COMMON PARTS QTY/CTN PART NO. PART NO.
1
2 Scale Control Insert (4640-10) (4330-8) 4640 4330
3 Water Distribution Tray 1 4331 4331
6 Drain Spud 6 4223 4223
7 Water Solenoid Valve (24 Volt) 1 4040 4040
8 In-Line Strainer 12 4004 4004
9 Saddle Valve 1 4001 4001
10 Orifice (Yellow) 144 (12-12 pks.) 4231 4231
11 Feed Tube with Strainer, Orifice, Compression Sleeve and Nut 1 4335 4335
12 Transformer 1 4010 4010
14 Automatic Humidifier Control Gasket 1 N/A 4305
15 Damper Assembly 1 4332 4332
16 Name Plate 1 4643 (Obsolete) 4333
OTHER PARTS QTY/CTN PART NO. PART NO.
13C Manual Humidifier Control 1 4655 4655
Outdoor Temperature Sensor (only available for automatic units) 1 8052 8052
Current Sensing Relay 1 50 50
Saddle Valve Adapter 6 4229 4229
Shock Arrestor 1 4280 4280
Humidifier Adapter Plate (Full Carton Qty Only) 20 5553 5557
Water Panel® Evaporator 10 35 35
Maintenance Kits (incl udes parts 35, 4236, 4235, 4246, 4232 and 4004) 1 4750 4750
1
Full units no longer ava ilable, pa rts only.
Model 700/700M , 7681, 760A1 & 7601 Humidifiers
BLUE/GRAY UNITS MODEL 700 MODEL 700M
NO. PART NAME QTY/CTN PART NO. PART NO.
2B Automatic Digital Humidifier Control 1 60 N/A
5 Transformer 1 4010 4010
16B Motor (Blue/Gray) 1 4670 4670
17B Cover (Blue/Gray) 1 4729 4729
18B Base (Blue/Gray) 1 4732 4732
19B Orifice Plate (Blue/Gray) 1 4735 4735
20B Bridge 1 4736 4736
21B Resistor Case & Manual Mode Label 1 4737 N/A
22B Female Disconnect Assembly 1 4739 4739
23B Relay 1 4740 4740
ALMOND UNITS MODEL 700 MODEL 700, 768, 760A, 760
NO. PART NAME QTY/CTN PART NO. PART NO.
2A Automatic Humidifier Control 1 N /A 56
16A Motor (Almond) 1 N/A 4237
17A Cover (Almond) 1 N/A 4242 (Obsolete replaced with 4729)
18A Base (Almond) 1 N/A 4245 (Obsolete replaced with 4732)
19A Orifice Plate (Almond) 1 N/A 4244 (Obsolete replaced with 4735)
20A Bridge 1 N/A 4243 (Obsolete replaced with 4736)
21A Resistor Case & Manual Mode Label 1 N/A 4336
22A Female Disconnect Assembly 1 N/A 4239
23A Circuit Board 1 N /A 4238
24 Automatic Humidifier Control Gasket 1 N/A 4305
NO. COMMON PARTS QTY/CTN PART NO. PART NO.
1
3 Saddle Valve 1 4001 4001
4 In-line Strainer 12 4004 4004
6 Cork Isolator 6 4031 4031
7 Water Solenoid Valve (24 Volts) 1 4040 4040
8A Orifice (Yellow) 144 (12-12 pks.) 4231 4231
8B Orifice (Blue) 144 (12-12 pks.) 4232 4232
9 Feed Tube with Strainer, Orifice, Compression Sleeve and Nut 1 4235 4235
10 Scale Control Insert 12 4236 4236
11 Male Disconnect Assembly 1 4240 4240
12 Water Distribution Tray 1 4246 4246
13 Fan Blade 1 4247 4247
14 Electrical Grommet 1 4249 4249
15 Power Cord (Blue/Gray) 1 4664 4664
25 Name Plate Assembly 1 4968 4968
OTHER PARTS QTY/CTN PART NO. PART NO.
2C Manual Humidifier Control 1 N /A 4655
Outdoor Temperature Sensor (only available for automatic units) 1 8052 8052
Current Sensing Relay 1 50 50
Saddle Valve Adapter 6 4229 4229
Shock Arrestor 1 4280 4280
Blower Activation Relay 10 4851 4851