Instruction/ maintenance manual of the product RA889A Honeywell
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PRODUCT DATA 68- 0216- 2 ® U.S. Registered T rademark Copyright © 2000 Honeywell Inc. • All Rights Reserved RA889A Switching Relay APPLICATION The RA889 A Switching Rel ay provid es intermedi ate switchi ng of line- a nd low-v oltage de vice s from a l ine- or low-v oltage controll er and i s typica lly appl ied in hy dronic he ating sy stems.
RA889A SWITCHING RELAY 68-0216—2 2 ORDERING INFORMATION When purc hasing re placement a nd modern ization p roducts fr om your TRADELIN E® wholes aler or dis tributor , refer to the TRADELINE® Ca talog or price sheets for c o mplete orderin g number .
RA889A SWITCHING RELAY 3 68-0216 — 2 Cross Reference: The R A889A repl aces many Hone ywell models . See T able 1 for additional cros s referenc e info rmat ion. Thermo stat Compa t ibil ity: All Ho neywell electrom echanic al and mos t electro mechani cal 2- or 3 -wire.
RA889A SWITCHING RELAY 68-0216 — 24 WIRING WARNING Electrical Sh ock Hazard. Can cause serious perso nal injury or de ath. Use only NEC Class 1 wire for all line vol tage wiring connec tions. Cla s s 1 wi res must be rated fo r at least 167 ° F (75 ° C).
RA889A SWITCHING RELAY 5 68-0216 — 2 Fig. 3. RA889A hookup for L7148A/L814 8A in an oil-fired, tankle ss hot water , zoned, pump s ystem. Fig. 4. RA889A h ookup for L714 8F/L8148E in a g as-fired, 24V , zoned, pump system .
RA889A SWITCHING RELAY 68-0216 — 26 Fig. 5. R888 8 zone expansion using RA889A Switch ing Relays. Fig. 6. RA88 9A thermostat c onnections. C2 C1 H1 H2 L2 L1 L1 ZC R W R C A B C R W R W R W C2 C1 C2 .
RA889A SWITCHING RELAY 7 68-0216 — 2 Fig. 7. RA889A con trol options . L1 L2 COM R(T) N.C. N.O. C W(T) RA889A M13317A A. FOR 24V THERMOSTAT CONTROL R C W THERMOSTAT B.
68-0216 — 2 G. R. Rev . 5-00 www .honeywell.com Home a nd Building Control Home a nd Building Control Honeyw ell Asia Pa cific Inc. Honeywe l l Inc. Honeywel l L imited- Honeywel l Limit ée Room 32 13-322 5 Honeywe l l Plaza 155 Gord on Baker Roa d S un Hung Ka i Centre P.
An important point after buying a device Honeywell RA889A (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 RA889A 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 RA889A - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Honeywell RA889A you will learn all the available features of the product, as well as information on its operation. The information that you get Honeywell RA889A will certainly help you make a decision on the purchase.
If you already are a holder of Honeywell RA889A, 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 RA889A.
However, one of the most important roles played by the user manual is to help in solving problems with Honeywell RA889A. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Honeywell RA889A 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
