User Guide

SERVICE TECHNICIAN ONLY — read and follow completely.
Replacement parts (continued)
Table 7 Series 3 trim parts
Fig.
No.
Description Mfr. Mfr. part no. Part no.
1
Combination pressure-temperature gauge kit, 60° – 360° F., 0 - 75
psi, 3
1/8" dia., 1/4" NPT, short shank, with 1/4" x 1/2" reducing bushing
Weil-McLain 380-000-000
2
ASME pressure relief valve, set to relieve at 30 PSIG,
3/4" male inlet,
3/4" female outlet
Conbraco M330 511-546-920
3
Electronic aquastat, high limit or combination high/low limit, with
LWCO, high limit 100°– 220°, low limit 110°- 200°, circulator amps:
5.8 FLA, anticipator: 0.2 amps
Hydrolevel 3250 381-300-000
4
Drain cock,
3/4", 11/2" shank Conbraco 31-606-01 511-210-423
Drain cock,
3/4" Hammond 710
511-246-392
Drain cock,
3/4" Watts BD2C
Drain cock,
3/4" Matco-Norca
Drain cock,
3/4" Nibco #74
5 Circulator, 1/25 HP, 120/60/1 motor, 175 RPM, 0.75 amps Taco W007F 511-405-113
6
Circulator universal hardware kit 1
1/4" (Includes: (1) Flange, (1)
Gasket, (2) Screws and (2) nuts) for sizes 2, 3 & 4 only
Weil-McLain 381-354-526
Circulator universal hardware kit 1
1/2" (Includes: (1) Flange, (1)
Gasket, (2) Screws and (2) nuts) for sizes 5 & 6 only
Weil-McLain 381-354-531
7
3/4" NPT well, 4.25" long Hydrolevel 592-300-026
8 Junction box - wiring harness assembly (series 1 A & B only) Weil-McLain 591-391-846
9 Junction box - wiring harness assembly (series 1 only - large pump) Weil-McLain 591-391-856
10 Junction box - wiring harness assembly (series 2 & 3 packaged only) Weil-McLain 591-391-836
11
(Not shown) Junction box - wiring harness assembly (series 2 & 3 A
& B only)
Weil-McLain 591-391-837
12 Junction box cover assembly with service switch Weil-McLain 591-391-854
13 Burner harness assembly Weil-McLain 591-391-850
14 Barometric damper Weil-McLain 510-512-267
15 Flue pipe brackets (set of 2) (Not shown) Weil-McLain 426-700-268
16
Vent damper kits
- Required for ENERGY STAR
®
compliance, (Version 3.0
Boilers specication of 87% AFUE), with reduced rates only
WGO-2RD (Optional equipment)
WGO-3RD (Optional equipment)
WGO-4RD (Optional equipment)
WGO-5RD (Optional equipment)
WGO-6RD (Optional equipment)
WGO-7RD (Optional equipment)
Field Controls
Weil-McLain
OVD-7
381-800-501
381-800-502
381-800-503
381-800-504
381-800-505
381-800-506
Part number 550-141-826/1014
36
GOLD
WGO
OIL-FIRED NATURAL DRAFT WATER BOILER — SERIES 3 — Boiler Manual