Instruction/ maintenance manual of the product PQ402-6 Chromalox
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PQ402-6 161-049460-001 FEBRUAR Y , 1999 4 CES SERVICE MANUAL (Supersedes PQ402-5) Chr omalox Electric Steam Boilers © 2010 Chromalox, Inc. Boiler does not heat: 1. Check power fusing. 2. Examine control circuit fuse. 3. Reset button on the Low W ater Control must be depressed (for states requiring a reset button).
Boiler syphons water: 1. Follow blowdown instructions. Boiler with condensate system floods overnight: 1. V acuum breaker is not operating. Elements fail: 1. Low W ater Cut-Off system has failed. 2. Lower equalizer tube on Low W ater Cut-Off is clogged due to lack of blowdown.
If the contactor fails to energize, check for blown fuses in the control circuit. If the fuses are not blown, check the contac- tor holding coil. The holding coil can be checked by jumpering T erminal L1 of the line and T erminal No. 4 (coil lead) on the contactor .
2150 N. RULON WHITE BLVD., OGDEN, UT 84404 Phone: 1-800-368-2493 www.chromalox.com LOW W A TER CUT -OFF — Like the pressure control, difficul- ties can be broken down into the mechanical and electrical groups. The mechanical difficulties can be corrected on the high pres- sure 100 psig motor and pump units in the following manner: 1.
An important point after buying a device Chromalox PQ402-6 (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 PQ402-6 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 PQ402-6 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Chromalox PQ402-6 you will learn all the available features of the product, as well as information on its operation. The information that you get Chromalox PQ402-6 will certainly help you make a decision on the purchase.
If you already are a holder of Chromalox PQ402-6, 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 PQ402-6.
However, one of the most important roles played by the user manual is to help in solving problems with Chromalox PQ402-6. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Chromalox PQ402-6 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
