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Chromalox PF490-5 manual

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Table of contents for the manual

  • Page 1

    Ch ro m alox ® DIVISION 4 SECTION CXH-A SALES REFERENCE DATE SERVICE REFERENCE PF490-5 161-302421-004 JULY, 2004 Installation Instructions and RENEWAL PARTS IDENTIFICATION (Supersedes PF490-4) © 2010 Chromalox, Inc. For ced Air Heater for Hazar dous Locations Overall Dimensions 5/8” UNC Tapped Horiz. Air (In.) Mounting Hole Locations Discharge [...]

  • Page 2

    W ARNING Failure to understand and follow these installation instructions and the WARNING notes contained therein may result in severe personal injury, death or substantial property damage. 1. To reduce the risk of ignition of hazardous atmospheres: In accordance with the National Electrical Code, do not install where operating temperature code exc[...]

  • Page 3

    3 The heaters may be mounted at any convenient height above floor. The minimum spacings shown in Figure 4 should be main- tained to adjacent walls and ceiling. If floor heat is desired, do not mount higher than 8 to 10 feet above floor. Controlling thermostats to individual heaters should be mounted at shoulder height on inside walls or columns and[...]

  • Page 4

    4 MOUNTING KITS Figure 5 Figure 7 Figure 9 Figure 6 Figure 10 Wall Mount Kit Model # WMB-12 12” Fan (3-10 kW) Model # WMB-16 16” Fan (15-20 kW) Model # WMB-20 20” Fan (25-35 kW) Pole or Wall Mount Kit Model # PMB-12 12” Fan (3-10 kW) Model # PMB-16 16” Fan (15-20 kW) Model # PMB-20 20” Fan (25-35 kW) Ceiling Mount Kit Model # HMK-00 P 1[...]

  • Page 5

    5 WIRING AND WIRING DIAGRAMS ELECTRIC SHOCK HAZARD. Disconnect all power before installing or servicing heater. Failure to do so could result in personal injury or property damage. Heater must be installed by a qualified person in accor- dance with the National Electrical Code, NFPA 70. ELECTRIC SHOCK HAZARD. Any installation involving electric hea[...]

  • Page 6

    6 WIRING DIAGRAMS DIAGRAM I DIAGRAM II Refer to Name Plate for Input Voltage Optional Disconnect Switch 1PH L1 L2 GND C1 Elements H1 H2 X1 X2 Refer to Nameplate for T ransformer Voltage Motor T3 T2 Built in or External Thermostat Remove this wire when using a thermostat M 1 PH Auxiliary Contactor Alarm R C1 C1 Manual Reset High Limit Contactor Coil[...]

  • Page 7

    7 OPERA TION EXPLOSION HAZARD. Heater should not be operated in ambient temperature higher than 40˚C (104˚F) or in atmospheres corrosive to the heater itself. 1. The CXH-A unit heaters use a sealed water-glycol filled heat exchanger. The electric immersion elements transfer heat energy directly to the fluid generating a fluid/vapor mixture which [...]

  • Page 8

    MAINTENANCE AND REP AIR The occurrence of the manual reset limit control to trip is an abnormal condition. Care should be taken to determine the exact reason that the high limit control tripped. Possible problem areas could be dirty heat exchanger, blocked air inlet or outlet, fan/motor malfunction, too high operating ambient, incorrect operating v[...]

  • Page 9

    MAINTENANCE AND REP AIR 1. CONTROL TRANSFORMER This item is located in the electrical enclosure. It may be replaced while in the enclosure. To service or replace remove the quick connect wires and mark their locations. Remove two screws which hold the transformer in place. Note transformer orientation and voltage labels on top. Replace transformer [...]

  • Page 10

    RENEW AL P ARTS IDENTIFICA TION 10 T ransformer Contactor Figure 16 1 33 35 50 19 15 17 16 31 34 52 51 32 25 30 26 44 27 28 29 75 50 27 15 6 62 10 CO 8 12 9 49 15 Figure 17 Electrical Control Voltage 24V 120V Contactor 072-304551-002 072-304551-008 Transformer 208/240/480 PRI 315-304252-002 315-304252-001 Transformer 575 PRI 315-304252-005 315-3042[...]

  • Page 11

    11 MANUFACTURER PART NUMBER BREAKDOWN (LOCATED ON UNIT NAMEPLATE) Code CXH-A-03 CXH-A-15, CXH-A-25, 05, 07 & 10 18 & 20 30 & 35 Item# Description Part No. Part No. Part No. 1 Panel wrapper 207-303891-001 207-303891-002 207-303891-003 6 Panel Bottom 207-303881-001 207-303881-002 207-303881-003 8 Panel Front 207-303883-001 207-303883-002 [...]

  • Page 12

    2150 N. RULON WHITE BLVD., OGDEN, UT 84404 Phone: 1-800-368-2493 www.chromalox.com Limited Warranty: Please refer to the Chromalox limited warranty applicable to this product at http://www.chromalox.com/customer-service/policies/termsofsale.aspx.[...]