Instruction/ maintenance manual of the product PF490-5 Chromalox
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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.
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.
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.
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 Mou.
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.
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 Bu.
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.
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.
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.
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 .
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.
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.
An important point after buying a device Chromalox PF490-5 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Chromalox PF490-5 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Chromalox PF490-5 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Chromalox PF490-5 you will learn all the available features of the product, as well as information on its operation. The information that you get Chromalox PF490-5 will certainly help you make a decision on the purchase.
If you already are a holder of Chromalox PF490-5, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Chromalox PF490-5.
However, one of the most important roles played by the user manual is to help in solving problems with Chromalox PF490-5. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Chromalox PF490-5 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
