Install Instructions
Table Of Contents
- Safety Considerations
- Electrostatic Discharge (ESD) Precautions
- To The Installer
- Product Application
- Location Requirements & Considerations
- Clearances and Accessibility
- Combustion & Ventilation Requirements
- Installation Positions
- Horizontal Applications & Considerations
- Vent Pipe & Combustion Air Pipe
- Materials – Installations In The U.S.A.
- Materials – Installations In Canada
- Pipe Installation
- Combustion Air Pipe Connection
- Vent/Intake Terminations For Installation of Multiple Direct Vent Furnaces
- Condensate Drain Lines & Drain Trap
- General Drain Information
- Field Supplied Drain
- Upflow Model Installed Vertically
- Drain Exiting Right Side
- Drain Exiting Left Side
- Upflow Model Installed Horizontally with Right Side Down
- Upflow Model Installed Horizontally with Left Side Down
- Upflow Model Installed Horizontally With Left Side Down - Alternate
- CounterFlow Model Installed Vertically
- Drain Exiting Left Side (See Figure 28)
- Drain Exiting Right Side (See Figure 29)
- Counterflow Model Installed Horizontally with Right Side Down (See Figure 30)
- Counterflow Model Installed Horizontally with Left Side Down (See Figure 31)
- Electrical Connections
- Gas Supply and Piping
- High Altitude Installation
- Circulating Air & Filters
- Filters - Read This Section Before Installing The Return Air Duct work
- Startup Procedure & Adjustment
- Gas Supply Pressure Measurement
- Operational Checks
- Safety Circuit Description
- Maintenance
- Filters
- Before Leaving an Installation
- Repair and Replacement Parts
- Special Instructions for Products Installed in the State of Massachusetts
36
THERMOSTAT CALL AVAILABLE SPEEDS
W/W1
F01
F03
F04
F02 (DEFAULT)
To change the main blower speed in circulation mode,
follow the following steps:
1. Press the left or right switch until LED displays
“FSd”. Press the center switch and LED will display
the selected speed number as Fxx (xx: Blower
speed number from 1 to 9). F01 is the default speed
for circulation.
2. The control will rotate available speed number every
time left/right switches are pressed. All 9 speeds are
available for circulation.
3. When the center switch is pressed, the current
displayed speed will be selected, and control will
immediately apply that speed setting.
THERMOSTAT
CALL
AVAILABLE
SPEEDS
G
F01
F02
F03
(DEFAULT)
F04
F05
F06
F07
F08
F09
On a call for low stage cooling, the Y/Y1 or Y/Y1 and G
thermostat contacts close signaling the furnace control
board with 24 VAC on Y/Y1 or Y/Y1 and G terminals.
• The 7-Segment will display the cool mode:1 A C
• The compressor and condenser fan are energized.
• The circulator fan is energized at low cool speed after
a cool on delay. The electronic air cleaner will also be
energized.
• After the thermostat is satised, the compressor is
de-energized and the Cool Mode Fan O Delay period
begins.
• Following the Cool Mode Fan O Delay period, the
cool circulator and air cleaner relay are de-energized.
On a call for 2nd stage cooling, the Y2 or Y2 and G
thermostat contacts close signaling the furnace control
board with 24 VAC on Y2 or Y2 and G terminals.
• The 7-Segment will display the cool mode: 2 A C
• The compressor and condenser fan are energized.
• The circulator fan is energized at cool speed after a
cool on delay. The electronic air cleaner will also be
energized.
• After the thermostat is satised, the compressor
is de-energized and the Cool Mode Fan O Delay
period begins.
• Following the Cool Mode Fan O Delay period, the
cool circulator and air cleaner relay are de-energized
To change the main blower speed in COOLING mode,
follow the following steps:
1. Press the left or right switch until LED displays “AC1
“(for single stage COOLING) or “AC2 “(for two-
stage COOLING). Press the center switch and LED
will display the selected speed number as Fxx (xx:
Blower speed number from 1 to 9).
2. The control will rotate available speed number every
time left/right switches are pressed. All 9 speeds are
available for both Single and Two Stage cooling.
3. When the center switch is pressed, the current
displayed speed will be selected, and control will
apply the newly selected speed in next cooling call.
THERMOSTATCALL AVAILABLESPEEDS
Y/Y1
F01
F02
F03
F04(DEFAULT)
F05
F06
F07
F08
F09
THERMOSTATCALL AVAILABLESPEEDS
Y2
F01
F02
F03
F04
F05(DEFAULT)
F06
F07
F08
F09