Pentair MasterTemp 400 - Page 53

Rev. N 10/2018 MASTERTEMP Pool and Spa Heater Installation and User’s Guide
53
MASTERTEMP HEATER REPLACEMENT PARTS
REPAIR PARTS – WATER SYSTEM
* Not available separately. • Not illustrated.
Model
Key Part 175NA - 200NA 300NA 400NA
No. Description Qty. 175LP - 200LP 300LP 400LP
1 Tube Sheet Coil Assembly Kit (NA, LP Series)
(Includes Key No.3) 1 77707-0232 77707-0233 77707-0234
474058
 474060  474061 
––
1Tube Sheet Coil Assembly Kit (NA - HD Series)
(Includes Key No.3) 1 77707-0244
– – 474065

1
3
20
21
22
4
5
8
9
12
11
10
2
7
6
19
14
15
13
18
17
16
 For heaters manufactured between 1/12/2009 and 10/31/2013 (clamp lid tub design) - Note: Kits also include Clamp Assembly, O-Ring and Silicon Tube.
2Manifold Kit (Includes Key Nos. 3-14, 21, &
Key Nos. 5-7 in “Electrical System”, Page 53 1 77707-0014 77707-0015 77707-0016
3 Coil/Tubesheet Sealing O-Ring Kit 77707-0117(6) 77707-0118(10) 77707-0119(12)
4 Manifold Bottom Plate
5 Manifold O-Ring 1
1
1
• O-Ring Kit (Incl. Key Nos. 3, 5) 1 77707-0120 77707-0120 77707-0120
6 Manifold Insert* 1
7 Manifold Baffle Plate
8 Manifold Bypass Valve 1
1
9 Water Pressure Switch 42001-0060S 42001-0060S 42001-0060S
10 Manifold 1
11 5/16" Washer, S.S. 10
12 5/16x18x2-3/4" Hex Cap screw 10
13 Connector Tube O-Ring 2
14 Connector Tube Kit (Includes 1 Connector Tube
and 1 O-Ring) 2 77707-0017 77707-0017 77707-0017
15 Thermal Regulator Kit
(Incl. Key No. 16, 17, 18, 19 and Spring Clip) 77707-0010 77707-0010 77707-0010
16 Thermal Regulator (Includes Spring Clip) 38000-0007S 38000-0007S 38000-0007S
17 Thermal Regulator Spring 1
1
1
18 Thermal Regulator Cap O-Ring 1 35505-1313 35505-1313 35505-1313
• Thermal Regulator Spring Clip 1
1
1
19 Thermal Regulator Cap
20 Drain Plug U178-920P U178-920P U178-920P
21 3/4" Pipe Plug 1 U78-60ZPS U78-60ZPS U78-60ZPS
22 Pressure Relief Valve (Recommended -
(Purchase Separately) 1 38674-0719 38674-0719 38674-0719
• Basic Manifold Kit (includes Key No. 3,5,10-14) 474200 474200 474200
( )
––
1Tube Sheet Coil / Combustion Chamber Kit (ASME SERIES)
Bronze Header - Key Nos. 3-12, 15, 20-22, 1 460940
472732Z – 474096

1
474350, 474953 
–
–
77707-0001 77707-0001 77707-0001
Tube Sheet Coil / Combustion Chamber Kit (HD ASME SERIES)
For ASME heater manufactured AFTER 10/31/2013 (New 9-bolt lid tub design)

For heater manufactured BEFORE 1/12/2009 
– 474956 
U9-226 U9-226 U9-226
Section 6. Maintenance/Replacement Parts