Instruction/ maintenance manual of the product V8944B Honeywell
Go to page of 12
PRODUCT DATA 65-0214-08 V4943/V8943B,C,N; V4944/V8944B,C,L,N Regulating Diaphra gm Gas V alves APPLICATION The V4943/V8943B and N (single stage) and V49 44/V8944B and N (two stage) are solenoid-operated diaphragm valves suitable f or natural gas only .
V4943/V8943B,C ,N; V4944/V8944B,C,L, N REGULATI NG DIAPHRAGM GA S V ALVES 65-0214—0 8 2 OR DERING INF ORMATION When purchasing replacement and moder nizat ion products from your TRADELINE® wholesaler or distributor , ref er to the TRADELINE® Catalog or pri ce sheets for complete order ing number .
V4943/V8943B,C ,N; V4944/V8944B,C ,L,N REGULATING DIAPHRAGM GAS V ALV ES 3 65-0214—0 8 Pressure Reference P ort Vent: 5/16–24 UNF inter nal tapping. Standard F actory Settings: See T able 3. Dimensions: See Fig. 1. We i g ht : 1 in., 1-1/4 in. valves: 4 lb (1.
V4943/V8943B,C ,N; V4944/V8944B,C,L, N REGULATI NG DIAPHRAGM GA S V ALVES 65-0214—0 8 4 Fig. 1. V4943/44 and V8943/4 4 dimensions in in. (mm). Gas V alve Sizing 1. Chec k the b urner namepl ate f or: a. the type of gas used, and b . the gas flow capacity .
V4943/V8943B,C ,N; V4944/V8944B,C ,L,N REGULATING DIAPHRAGM GAS V ALV ES 5 65-0214—0 8 Fig. 3. C apacity vs. pres sure dr op of Natural Gas curves for 1-1/4 in. v alve. Fig. 4. C apacity vs. pres sure dr op of Natural Gas curves for 1-1/2 in. v alve.
V4943/V8943B,C ,N; V4944/V8944B,C,L, N REGULATI NG DIAPHRAGM GA S V ALVES 65-0214—0 8 6 Fig. 7. Capacity vs. pr essure drop of LP Gas curves for 1-1/4 in. v alve. Fig. 8. Capacity vs. pr essure drop of LP Gas curves for 1-1/2 in. v alve. Fig. 9. Capacity vs.
V4943/V8943B,C ,N; V4944/V8944B,C ,L,N REGULATING DIAPHRAGM GAS V ALV ES 7 65-0214—0 8 When Installing this Pr oduct... 1. Read these instructions carefully .
V4943/V8943B,C ,N; V4944/V8944B,C,L, N REGULATI NG DIAPHRAGM GA S V ALVES 65-0214—0 8 8 Fig. 10. Preparing the pipi ng and in stalling the v alve. Wiring WARNING Electrical Shock Hazar d. Can cause serious injury , de ath or equipment damage . Disconnect the power supply before making connections to prev ent electrical shock and equipment damage.
V4943/V8943B,C ,N; V4944/V8944B,C ,L,N REGULATING DIAPHRAGM GAS V ALV ES 9 65-0214—0 8 Fig. 11. T ypical wirin g diagram for V4943B,N. Fig. 12. T ypical wiring diag ram for V8943B,C,N. Fig. 13. T ypical wiri ng diagram for V4944B,C,L,N with three leadwire electrical termination.
V4943/V8943B,C ,N; V4944/V8944B,C,L, N REGULATI NG DIAPHRAGM GA S V ALVES 65-0214—0 8 10 Operation of the V4943B,C,N/ V8943B,N The V4943/V8943B,C,N V alves are combination gas controls that include a single stage of pressure regula tion in addition to the shut-off function.
V4943/V8943B,C ,N; V4944/V8944B,C ,L,N REGULATING DIAPHRAGM GAS V ALV ES 11 65-0214—0 8 Chec kout 1. V alve outlet pressure measurements are made a t a point appro ximately fiv e pipe diameters downstream from the valv e outlet.
V4943/V8943B,C ,N; V4944/V8944B,C,L, N REGULATI NG DIAPHRAGM GA S V ALVES Automation and Control Solu tions Honeywell International Inc. 1985 Douglas Drive North Golden Valley, MN 55422 customer.honeywell.com ® U .S. Re gistered T rademark © 2011 Hone ywell International Inc.
An important point after buying a device Honeywell V8944B (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Honeywell V8944B 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 Honeywell V8944B - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Honeywell V8944B you will learn all the available features of the product, as well as information on its operation. The information that you get Honeywell V8944B will certainly help you make a decision on the purchase.
If you already are a holder of Honeywell V8944B, 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 Honeywell V8944B.
However, one of the most important roles played by the user manual is to help in solving problems with Honeywell V8944B. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Honeywell V8944B 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
