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HAI RC-122BZ Installation instructions manual

Other manuals for RC-122BZ: Owner's Manual

Summary of RC-122BZ

  • Page 1

    1 1 rc-122bz two stage heat/cool 2 stage heat / 2 stage cool thermostat installation instructions description the rc-122bz is a precision digital thermostat designed for 24 vac two-stage heating and cooling systems. It has the capability of being controlled both locally and by remote control over a ...

  • Page 2: Figure 1

    2 2 removing an existing thermostat 1. Disconnect the power to the control transformer. 2. Remove the cover to the existing thermostat. 3. Disconnect the wires going to each terminal on the thermostat. Label each wire with the letter or number at the terminal. 4. Remove the existing plate or base fr...

  • Page 3: Figure 2

    3 3 connect each wire to the terminal strip on the thermostat base per the wiring diagram for your system application - see figures 4 - 5. Form the thermostat wiring so that the cable lies flat between the terminal strip and the center of the base. Upon completion of wiring the thermostat, push all ...

  • Page 4: Caution:

    4 4 typical wiring diagrams caution: be sure to disconnect the power to the control transformer before removing or installing thermostat. Do not short gas valve(s), fan, heat relay(s), or cool relay(s)... Even momentarily. This will blow a non- replaceable fuse. Do not attempt to hook up to live cir...

  • Page 5: Figure 5

    5 5 figure 5.

  • Page 6: Figure 6

    6 6 configuring the backlight on the rc-122bz the backlight on the rc-122bz can be configured to one of three different modes: 1) on for 30 seconds when a key is pressed, 2) always on, or 3) always off. 1) to configure the display backlight to turn on when a key is pressed, then back off 30 seconds ...

  • Page 7

    7 7 installer setup this section describes the items that the installer must setup as part of the thermostat installation. The installer setup mode is used to configure the general operating parameters of the thermostat. When in installer setup mode: 1. The small digits on the top of the display are...

  • Page 8

    8 8 01 communications mode the thermostat can communicate with remote systems in 4 different modes. These modes are: 0 300 baud, rs-232 mode (for use with personal computers) 1 100 baud, z-wave mode (omnilt, omni, omni ii, omnipro, and omnipro ii systems) 8 pesm mode, (use with model 1503 automation...

  • Page 9

    9 9 04 calibration offset this item is used to raise or lower the current temperature reading by 1 degree fahrenheit or 1/2 degree celsius. If this item is set to 30, no change will be made. Each digit below 30 will lower to temperature, and each digit above 30 will raise the temperature. (1 = “- 29...

  • Page 10

    1 1 0 0 12 heating minimum on/off time (minutes) this item is the same as the “cooling minimum on/off time”, but for the heating system. The default setting is 8. 13 stage 2 differential this item specifies the temperature difference between stage 1 and stage 2. The default setting of 2 (degrees f) ...

  • Page 11

    1 1 1 1 anticipation anticipation is performed electronically and is independent of the type and load of the components in the heating and cooling equipment. This thermostat has electronic control based on proportional, integral and derivative components and maintains temperature to within 1 degree ...

  • Page 12

    1 1 2 2 wireless communications with hai controller this thermostat has been preprogrammed with energy saving settings recommended under the epa energy star program. When used with remote systems, hai recommends that the thermostat be configured as "non- programmable" (see setup item 03 - "display o...

  • Page 13

    1 1 3 3 command_class_sensor_multilevel the rc-122bz thermostat uses this command class to report the actual temperature. Command_class_association upon power up, allow 10 seconds for the rc-122bz thermostat to initialize. After 10 seconds, a controller can issue an association set, remove, or get c...

  • Page 14

    1 1 4 4 command_class_clock upon power up, allow 10 seconds for the rc-122bz thermostat to initialize. After 10 seconds, a controller can set the time of the internal clock interoperability with z-wave™ devices a z-wave™ network can integrate devices of various classes, and these devices can be made...

  • Page 15

    1 1 5 5 troubleshooting tips symptom action to take 1. Check power to the thermostat 2. Check wiring diagrams thermostat dead 3. Check thermostat temperature sensor thermostat will not operate with a damaged temperature sensor symptom action to take 1. Check for break in g, w, or y wire 2. Allow min...

  • Page 16

    1 1 6 6 symptom action to take 1. Stage 1 is not able to meet the load due to severe weather stage 2 on too often 2. Eec is disabled symptom action to take 1. System may be equipped with an outdoor thermostat which is overriding stage 2 the when outdoor temperature is mild no stage 2 operation 2. St...