Carrier AQUAZONE 50QE900 Owner's Manual

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
PC 111 Catalog No. 535-00108 Printed in U.S.A. Form 50QE-1SO Pg 1 6-03 Replaces: New
Book 1 4
Ta b 5 a 5 a
Owner’s Manual
Part Number 50QE900-220WS
CONTENTS
GENERAL
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
CONFIGURATION
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Thermostat Display
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Heat or Cool Indicator
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Thermostat Front Panel Buttons
. . . . . . . . . . . . . . . . . 2
Thermostat Programming Buttons
. . . . . . . . . . . . . . . 2
Set Clock
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Programming Thermostat Schedules
. . . . . . . . . . . . . 3
OPERATION
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4,5
Auto-Changeover
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Two-Stage Operation
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Clock Backup
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Fan Operation
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Emergency Heat
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Holiday Mode
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
GENERAL
Carrier’s Aquazone 7-day, commercial, programmable ther-
mostat is a wall-mounted, low-voltage thermostat which main-
tains 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 schedules for
energy savings.
This thermostat allows up to 3 occupied and one unoccu-
pied time/temperature setting to be programmed per 24-hour
period. Each thermostat stores programs for 7 independent
days. Batteries are not required. During power interruption the
internal NEVERLOST™ memory stores programs for an un-
limited time.
CONFIGURATION
Thermostat Display —
The thermostat display is locat-
ed in the center of the thermostat. See Fig. 1. The following in-
formation can be displayed on the screen:
• mode (OFF, HEAT, COOL, AUTO, or PROGRAM ON)
• fan setting (FAN ON or blank)
• override indication
• room temperature
• desired temperature
• service filter indicator
• time of day
• day of the week
• schedule period (Occupied 1, 2, or 3; or Unoccupied)
• setup indicator (Programming mode)
• lock indicator
• start/stop indicator (schedule period Programming mode)
Heat or Cool Indicator —
A Heat or Cool indicator is
located on the bottom left cover of the thermostat. See Fig. 2.
The light will be red if the thermostat is in Heating mode. The
light will be green if the thermostat is in Cooling mode.
IMPORTANT: Read entire instructions before program-
ming the thermostat.
IMPORTANT: The thermostat has a configurable security
level. If certain functions are not available (changing set
points, changing programming schedules), the thermostat
security level may be configured to exclude those func-
tions. Call the installer to reconfigure the security level.
50QE900
Aquazone™ Water Source Heat Pump
Commercial 7-Day Programmable Thermostat
Fig. 1 — Thermostat Display

Carrier AQUAZONE 50QE900 Specifications

General

Brand	Carrier
Model	AQUAZONE 50QE900
Category	Thermostat
Language	English