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Crown Boiler 32-475ECS manual

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  • Page 1

    D e s i g n e D t o L e a D T el: (215) 535-8900 • Fax: (215) 535-9736 • www .crownboiler .com Manufacturer of Hydronic Heating Products P .O. Box 14818 3633 I. Street Philadelphia, P A 19134 Series 32ECS Gas-Fired Natural Draft Steam or W ater Boilers INST ALLA TION SUPPLEMENT FOR: 32-380ECS 32-475ECS EQUIPPED WITH 24 VOL T CONTROL SYSTEMS W A[...]

  • Page 2

    [...]

  • Page 3

    I Pr oduct 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 Specications 32-380E[...]

  • Page 4

    VII V enting Refer to installation manual. V ent 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 require[...]

  • Page 5

    W ARNING All wiring and grounding must be done in accordance with the authority having jurisdiction or , in the absence of such CAUTION Make sure that damper and BVS harnesses are secured so that they do not come in contact with draft hood or steam piping. XI Contr ol System W iring W ire the boiler in accordance with the following instructions rat[...]

  • Page 6

    “BURNER” “BURNER” TH TR + ROBERTSHAW 7000DERHC GAS V AL VE VENT DAMPE R (NOTE 2) NOTE 2 LESS VENT DAMPER 2. ON BOILERS LESS VENT DAMPER, DAMPER HARNESS NOT USED. RED AND BLUE LEADS ARE JUMPED TOGETHER USING RED JUMPER WIRE. RD RD RD ALARM ALARM 2 (NOTE 2) 2. WHEN DAMPER IS NOT USED, DAMPER HARNESS IS REPLACED WITH JUMPER PLUG. PILOT V ALVE [...]

  • Page 7

    Sequence of Operation - Steam Boiler 1) When the boiler is ener gized, 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 prob[...]

  • Page 8

    2 HIGH LIMIT LOW LIMIT HONEYWELL L8124E TH TR + ROBERTSHAW 7000DERHC GAS VAL VE PILOT VAL VE MAIN VAL VE RD RD RD/YE RD RD/YE ALARM ALARM Figure C: W ater Boiler Wiring (W ith T ankless Heater) Figure D: Steam Boiler Control Installation 6[...]

  • Page 9

    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 qualied gas service technician before the blocked vent switch is reset. Sequence of[...]

  • Page 10

    Figure F: W ater Boiler Contr ol Installation (Less T ankless Heater V ersion Shown) Figure E: Blocked V ent Switch Installation 8[...]

  • Page 11

    6) Once the ignition module detects the presence of a pilot ame, voltage is applied across the main valve (terminals “MV” and “MV/PV”), opening the valve and establishing main ame. 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 modu[...]

  • Page 12

    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. 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 SERIES 32 MASTER PARTS LIST FOR 32-380ECS & 32-475ECS DESCRIPTION SECTIONS BAS E SIDE PANEL[...]

  • Page 13

    BASE SIDE CAR TON - See Installation Manual JACKET SIDE P ANEL CAR TON- See Installation Manual W A TER AND STEAM BOILER CAR TONS - As shown in Installation Manual except that Rating Plate is factory applied to RH Side Jacket Panel. BASE P AR TS - Base parts are identical to those shown in Installation Manual with the following exceptions: 1) 24 V [...]

  • Page 14

    12 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 BRA[...]

  • Page 15

    [...]

  • Page 16

    PN 980895 05/10 T el: (215) 535-8900 • Fax: (215) 535-9736 • www .crownboiler .com Manufacturer of Hydronic Heating Products P .O. Box 14818 3633 I. Street Philadelphia, P A 19134[...]