Instruction/ maintenance manual of the product T7984 B Honeywell
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T7984 A,B,C Electronic Modulating Control Thermostats PRODUCT DATA APPLICA TION These microprocesso r-based thermost ats provide proportional - integral (PI) i ndividual room temp erature control in z.
T7984 A,B,C ELECTRONIC MODULATING CONTROL THERMOSTATS SPECIFICATIONS IMPORTANT The specifications gi ven in this publicat io n do not include normal manufactu ring tole rances.
T7984 A,B,C ELECTRONIC MODULA TING CONTROL T HERMOSTAT S T able 2. Option Settings Parameter Selection T7984 Model A B C Reheat T ime Const ant Fast (7.
T7984 A,B,C ELECTRONIC MODULATING CONTROL THERMOSTATS T7984A Output 1 analog 2œ10V Output 2 on/off Mode input jumper Changeover input for Out 1 Day/Night mode (NSB) Remote sensor option 75°F setpoi nt limit Cooling and/or heating X X WIRING T o in stall a remote duct or room temperature se nsor , adust DIP the screw terminals and wire as shown.
T7984 A,B,C ELECTRONIC MODULA TING CONTROL T HERMOSTAT S T7984B Output 1 analog 2œ10V Output 2 on/off Mode input jumper Changeover input for Out 1 Day/Night mode (NSB) Remote sensor option 75°F setp.
T7984 A,B,C ELECTRONIC MODULATING CONTROL THERMOSTATS T7984C Output 1 analog 2œ10V Output 2 analog 2œ10V Mode input jumper Changeover input for Out 1 Day/Night mode (NSB) Remote sensor option 75°F .
T7984 A,B,C ELECTRONIC MODULA TING CONTROL T HERMOSTAT S Output 1, Modulating Analog Output 2 to 10Vdc (T7984 All) Main output of the thermostat. On the T7984 series tha t output is modulating PI analog (2 to 10 Vdc). That signal uses a variable Vdc signal for the control of analog damp er actuator and analog valve actuator .
T7984 A,B,C ELECTRONIC MODULATING CONTROL THERMOSTATS Output 2 On/Off (T7984B only) A 24 V ac on/off output which is normally used to control terminal reheat in a zoned system. Example: electric base board relay , electric duct heater relay , perim eter on/off 24 V ac valve, etc.
An important point after buying a device Honeywell T7984 B (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 T7984 B 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 T7984 B - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Honeywell T7984 B you will learn all the available features of the product, as well as information on its operation. The information that you get Honeywell T7984 B will certainly help you make a decision on the purchase.
If you already are a holder of Honeywell T7984 B, 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 T7984 B.
However, one of the most important roles played by the user manual is to help in solving problems with Honeywell T7984 B. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Honeywell T7984 B 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
