Williamson OWB Series 2 User Manual page 25

12 Replacement parts
Figure 18 Trim and controls
10
Description
Item
number
1 Pressure relief valve, ASME, 30 PSIG, ¾" male inlet
2
Combination high limit/low limit/circulator relay control
*
- LWCO with Electro-Well
Electro-Well OWB Only
Electro-Well OWT Only
Combination pressure-temperature gauge
3
4 Circulator (Fittings shown are shipped loose with boiler.)
5 Circulator gasket, universal (2 per boiler)
Circulator hardware kit, includes:
2 flanges, 4 nuts, 4 bolts, 1 nipple, 1 ell —
1¼" NPT — OWB/OWT-3 & OWB/OWT-4
1½" NPT — OWB/OWT-5 & OWB/OWT-6
6
Circulator wiring harness
Drain valve, ¾" NPT, 1-½ Shank
7
Drain valve, ¾" NPT, Standard
8 Burner wiring harness
Balanced draft damper (barometric)
9
Vent damper kits - Required for ENERGY STAR
10
3.0 Boilers specification of 87% AFUE), with reduced rates only
OWB/OWT-3-T-S2-D (Optional equipment)
OWB/OWT-4-T-S2-D (Optional equipment)
OWB/OWT-5-T-S2-D (Optional equipment)
OWB/OWT-6-T-S2-D (Optional equipment)
Part Number 550-110-832/1014
OWB & OWT Series 2 Oil-Fired Water Boilers – Boiler Manual
continued
*
installed.
TM
(Not shown)
compliance, (Version
®
Manufacturer
Manufacturer's
Part number
Watts M330
Hydrolevel 3150
Amekai OS234JDTW003
Taco 007
Effikal ESOC-7
Fields Control 02723101
Fields Control OVD-7
Part number
511-546-920WT
381-356-530WT
592-300-026WT
592-300-027WT
510-218-099WT
511-405-113WT
590-317-535WT
381-354-526WT
381-354-531WT
591-391-911WT
511-210-423WT
511-246-392WT
591-391-910WT
510-512-267WT
381-800-502WT
381-800-503WT
381-800-504WT
381-800-505WT
25