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D e s i g n e D t o L e a D
Series 32ECS
Gas-Fired Natural Draft Steam or Water Boilers
INStallatIoN SUPPlEMENt FoR:
32-380ECS
32-475ECS
EQUIPPED WItH 24 Volt CoNtRol SYStEMS
WaRNING: Improper installation,
adjustment, alteration, service or
maintenance can cause property
damage, injury, or loss of life. For
assistance or additional information,
consult a qualified installer, service
agency or the gas supplier. Read
these instructions care
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I Product Description This supplement covers information not included in the standard Series 32 installation manual that is unique to the following models: 32-380WNLECS, 32-475WNLECS 32-380WNTECS, 32-475WNTECS 32-380SNLECS, 32-475SNLECS Follow the Series 32 installation instructions except where noted in this supplement. II Specifications 32-380ECS Dimensional Data (Refer to Figure 1 in Installation Manual): Jacket Overall
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VII Venting Refer to installation manual. Vent sizing for the 32-380ECS should always be done in accordance with the National Fuel Gas Code. A vent damper can be installed on any 32-380ECS or 32-475ECS equipped with a 24 volt control system except for those with tankless heaters. If a vent damper is installed, the following components are required: • Effikal Model GVD-12 Vent Damper: Crown PN 96-038 • Damper Harness (Steam Boilers): Crown PN 9601300 • Damper Harness (Water Boilers): Cro
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XI Control System Wiring WARNING All wiring and grounding must be done in accordance with the authority having jurisdiction or, in the absence of such Wire the boiler in accordance with the following instructions rather than those in the installation manual. Provide the boiler with a dedicated branch circuit with a fused disconnect. The minimum rating of this circuit must be 15A. Wire the boiler using the appropriate wiring diagram shown in Figures A-C in this supplement. In addition, note th
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VENTDAMPER(NOTE2) NOTE2 “BURNER” “BURNER” RD LESSVENT DAMPER RD ALARM ALARM ROBERTSHAW + TH 7000DERHC GASVALVE TR RD 2.ONBOILERSLESSVENTDAMPER,DAMPERHARNESSNOTUSED.REDANDBLUE LEADSAREJUMPEDTOGETHERUSINGREDJUMPERWIRE. Figure A: Steam Boiler Wiring (NOTE2) RD/YE RD 2 RD/YE MAINVALVE PILOTVALVE RD ALARM ALARM BL ROBERTSHAW + TH 7000DERHC GASVALVE TR RD RD/YE - REDwithYELLOWTRACE 2. WHENDAMPERISNOTUSED,DAMPERHARNESSISREPLACEDWITHJUMPERPLUG. Figure B: Water Boiler Wiring (Less Tankless Heater) 4
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Sequence of Operation - Steam Boiler 1) When the boiler is energized, 24 volts is immediately applied to terminals “1” (blue) and “4” (yellow) on the vent damp- er. Assuming that there is no call for heat, and that the damper switch is in the “automatic” position, the damper will close. On boilers equipped with Hydrolevel CG400A probe type low water cut-offs, voltage is also always applied to terminals “1” (blue) and “2” (yellow) on the low water cut-off to power the water level sensing circu
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HONEYWELL L8124E RD RD/YE HIGHLIMIT 2 RD/YE RD MAINVALVE RD LOW LIMIT ALARM ALARM PILOTVALVE + ROBERTSHAW TH 7000DERHC GASVALVE TR Figure C: Water Boiler Wiring (With Tankless Heater) Figure D: Steam Boiler Control Installation 6
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equipped with a reset button which must be pressed to restore normal burner operation. An open blocked vent switch is indicative of a problem with the vent system. If the blocked vent switch opens, the cause of the venting problem must be found and corrected by a qualified gas service technician before the blocked vent switch is reset. Sequence of Operation - Water Boiler, Less Tankless Heater 1) When the boiler is energized, 24 volts is immediately applied to terminals “1” (blue) and “4” (ye
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Figure E: Blocked Vent Switch Installation Figure F: Water Boiler Control Installation (Less Tankless Heater Version Shown) 8
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6) Once the ignition module detects the presence of a pilot flame, voltage is applied across the main valve (terminals “MV” and “MV/PV”), opening the valve and establishing main flame. 7) The way in which the ignition module handles failure to establish pilot or the loss of an already established pilot depends upon the exact ignition module supplied with the boiler. For more information on module operation, consult the ignition module instructions supplied with the boiler or the local Cro
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SERIES 32 MASTER PARTS LIST FOR 32-380ECS & 32-475ECS SECTIONS DESCRIPTION 380 475 380 475 I A PART # (STANDARD) 310000 310001 310002 3110053 3110063 310405 310406 311026 311020 311010 310400 311027 311028 311031 1 EA. 1 EA. QUANTITY PART # BOILER MODEL 32-380ECS 1 1 3 1 1 1 1 1 1 1 1 311035 311037 32-475ECS 1 1 4 1 1 1 1 1 1 1 1 311035 311037 ECS BASE CARTON DESCRIPTION PART # 380 475 380 ECS BASE ASSEMBLY 3131053 1 475 ECS BASE ASSEMBLY 3131063 1 REAR TIE ROD CHANNEL BRACKET 310311 1 1 5/8 X 4
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BASE SIDE CARTON - See Installation Manual JACKET SIDE PANEL CARTON- See Installation Manual WATER AND STEAM BOILER CARTONS - As shown in Installation Manual except that Rating Plate is factory applied to RH Side Jacket Panel. BASE PARTS - Base parts are identical to those shown in Installation Manual with the following exceptions: 1) 24 Volt transformer (KEY #34) is not provided 2) 285 base is not used 3) CSD-1 gas train is not available. ECS WATER TRIM CARTON (LESS TANKLESS HEATER) DESCRIP
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ECS STEAM TRIM CARTON DESCRIPTION PART # QTY STEAM PROBE CONTROL SUB ASSY 3513210 1 LWCO, CG400 WITH "P" PROBE 400824 1 BLOCKED VENT SWITCH ASSY 960128 1 GLASS SET (20-104-10, 8" CTR TO CTR) 950080 1 L404F PRESSURE LIMIT 3503805 1 STRAIGHT BRASS PIGTAIL 95-060 1 1/2 X 4 BRASS NIPPLE 950004 1 1/2 BRASS TEE 951441 1 1/2 BRASS PLUG 95-091 1 PRESSURE GAUGE 95-070 1 1/2 X 1/4 BRASS BUSHING 95-146 2 1/2 X 3 BR NIPPLES 95-116 2 1/2" BR. UNION 95-150 2 1/2 X CL BRASS NIPPLES 95-147 2 BLANK COIL PLATE 27
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Manufacturer of Hydronic Heating Products P.O. Box 14818 3633 I. Street Philadelphia, PA 19134 Tel: (215) 535-8900 • Fax: (215) 535-9736 • www.crownboiler.com PN 980895 05/10
