Honeywell ENVIRAZONE PANEL W8835 Product Data

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Honeywell ENVIRAZONE PANEL W8835 Product Data Manual pdf 8 page image

W8835 ENVIRAZONE PANEL68-0258—04 8CAUTIONEquipment Damage Hazard.Incorrect transformer wiring can damage panel.Wire transformers in phase when one transformeris wired to R and C and the auxiliary transformeris wired to T1 and T2.Fig. 12. Wiring transformer(s) to panel.Wiring C7835 Discharge AirTemperature SensorConnect wire terminals 1, 2, and 3 to the correspondingterminals on either the W8835 EnviraZone panel or any otherEnviraCom device such as a thermostat. Refer to C7835Installation Instructions for configuration. Multiple devices canbe wired in parallel to the each of the 1, 2, 3 terminals.STARTUP AND CHECKOUT1. Verify that the equipment, thermostats, transformer, andDischarge Temperature Sensor are wired correctly. Ifone transformer is powering the panel, install the XFRMjumper. If two transformers are powering the panel, leavethe XFRM jumper in the open position.2. Power up the W8835. Verify that all LEDs except COMilluminate for five seconds.The board should then enterthe Purge mode with all dampers open. The damperLEDs are green to indicate the dampers are open.The COM LED begins to blink.3. Press the Purge Override button to terminate the Purgemode.4. On the W8835 Panel, set the DIP switches.a. Set DIP switches 1, 2, and 7 to assign theappropriate number of heating and cooling stages.See Tables 5 and 6.b. Configure other DIP switches, as necessary to fit theapplication. See Table 6.5. On each thermostat, enter the Installer Setup proceduresusing the VisionPRO® IAQ Installation Instructions andassign each thermostat a zone number to correspondwith its zone damper.6. Run Discovery by pressing the Discovery button on thezone control panel.7. On each thermostat, enter the Installer Setupprocedures using the Installation Instructions and config-ure other pertinent Installer Setup options. Program thethermostat schedule if the default settings are notdesired.8. Run Discovery by pressing the Discovery button on thepanel.9. Set Zone one thermostat to heat and raise the setpoint tocall for heat.a. Verify that the heat LED is red.NOTE: The furnace heat may not come on immedi-ately. Allow at least 5 minutes for heat to beginafter the thermostat calls for heat.b. Verify that Zone one LED remains green.c. Verify that all other zone LEDs are not illuminated.d. Change thermostat mode from Heat to Off.10. Set Zone two thermostat to heat and raise the setpoint tocall for heat.a. Verify that the heat LED is red.b. Verify that Zone two LED remains green.c. Verify that all other zone LEDs are not illuminated.d. Change thermostat mode from Heat to Off.11. Alternatively, set a thermostat to Cool, lower thesetpoint to call for cooling, wait five minutes, and verifycorrect operation.OPERATIONSequence of OperationWhen there is no call for heat, cool or fan, the board is in theidle mode, indicated with no system LEDs illuminated, seeTable 3. Damper LEDs are green to indicate open. On a call forheat, cool, or fan, the calling zone damper stays open and thedamper LED remains illuminated; the other zone dampersclose and corresponding damper LEDs do not illuminate.The W8835 panel energizes the HVAC equipment andconditioned air is delivered to the calling zone. The heat LED(red), cool LED (green), or fan LED (green) illuminates toindicate equipment operation.The fan LED illuminates only on a call for fan; it does notilluminate during a call for heat or cool. When the heat/cool callis satisfied, the system enters the Purge mode, indicated bythe Purge LED (yellow). Damper positions either remain in thesame positions as at the end of the call for heat or cool(default) or open, depending on the position of DIP switch 6.After purge, all dampers return to the Open position.RCT1T2C RCR24 VAC, 40 VATRANSFORMER(REQUIRED IFMORE THANFIVE DAMPERS)24 VAC, 40 VATRANSFORMERDAMPERXFRMPANELXFRMM31126REMOVE XFRM JUMPERSFROM PINS WHEN USINGTWO TRANSFORMERS