Carrier AQUAZONE 50QE900 Installation And Operating Instructions Manual Download

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Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.

Catalog No. 04-53500037-01

Printed in U.S.A.

Form 50QE-7SI

Pg 8 7-07

Replaces: 50QE-2SI

Book 1

Tab

Summary of Contents for AQUAZONE 50QE900

Page 1: ...r property damage GENERAL The 7 day commercial programmable thermostats is a wall mounted low voltage thermostat which maintains room temperature by controlling the operation of an HVAC heating cooling and ventilation system Separate heating and cooling set points and auto changeover capability allow occupied and unoccupied programming for energy savings This thermostat allows up to 4 time tempera...

Page 2: ...re length and routing to allow proper closure of the thermostat Strip each wire at the end no more than 1 4 in to prevent adjacent wires from shorting together Match and connect wires to terminals on the thermostat See Fig 2 5 and Table 1 9 Push excess wiring into wall Seal hole in wall to prevent drafts 10 Re attach thermostat cover to back plate by aligning the top two prongs of the back plate i...

Page 3: ...ser to reset the Service Filter counter to zero and remove the SERVICE FILTER icon if displayed on the thermostat screen Press the OVERRIDE button while in Setup Step 3 and the counter is reset to zero Press the arrow buttons to ad just the number of hours the blower will run before the SER VICE FILTER icon is displayed The range is 0 to 1950 hours Set the variable to 0 to disable this function Th...

Page 4: ...arity for the heat pump The vari able can be set to either B or O Set the reversing valve polarity to the correct value depending on the application The default is O Program Thermostat Schedules Before pro gramming the thermostat plan the thermostat daily schedule The schedule is divided into 7 days Monday through Sunday Each day has from 2 to 4 time periods Occupied 1 Occupied 2 Occupied 3 Unoccu...

Page 5: ... been entered press the Program button to exit Programming mode NOTE The thermostat will continue to follow the schedule until a new one is entered If only one occupied schedule is selected the Occupied 2 and 3 schedules are skipped If the start time is set later in the day than the stop time the program will run from midnight of that day to the stop time and then from the start time to mid night ...

Page 6: ...the deadband plus 2 degrees Clock Backup In the event of a power loss the ther mostat will keep time for a minimum of 48 hours without external power or batteries Fan Operation If Fan On is selected the fan will run continuously during occupied schedule except when Mode is switched to OFF The fan will be off during unoccupied schedule except during heating or cooling operation If Fan On is not sel...

Page 7: ...ower operation timer to 0 hours Cooling Will Not Energize Select COOL mode Decrease cooling set point to 10 degrees below room temperature Check for 24 vac at Y1 terminal If present ther mostat is operating correctly and problem is with wiring or equipment If 24 vac is not present replace the thermostat Check for Compres sor Cycle per Hour Limit Cooling may be locked out Heating Will Not Energize ...

Page 8: ...ntinue or change at any time specifications or designs without notice and without incurring obligations Catalog No 04 53500037 01 Printed in U S A Form 50QE 7SI Pg 8 7 07 Replaces 50QE 2SI Book 1 4 Tab 5a 5a Copyright 2007 Carrier Corporation ...

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Carrier AQUAZONE 50QE900, Installation And Operating Instructions Manual

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