21
English
9.8
GAS FURNACE SET UP
•
Set up for gas furnace is possible by CXTQ’s dip switch only.
Gas furnace’s dip switch is not valid. Refer to the gas
furnace’s installation manual for details of each setting menu.
•
If the HEAT OFF delay time was changed to a longer time,
warm up process time of the heat pump may increase.
9.9
CFM TABLE SETTING
•
Change this setting from “STANDARD” to “LOW” when
connecting CXTQ with the following rated combinations.
Once “Low” is set, the indoor airflow CFM will be equivalent
to one tonnage lower for only heat pump operation.
Combination A
Combination B
Combination C
Outdoor unit
2 ton x 1 unit
3 ton x 1 unit
4 ton x 1 unit
CXTQ
3 ton x 1 unit
4 ton x 1 unit
5 ton x 1 unit
Other indoor unit
N/A
N/A
N/A
AIRFLOW CFM SETTING
MODE
NO.
FIRST CODE
NO.
SECOND
CODE NO.
Standard
01*
Low
02
*Factory set
13 (23)
5
Table 17
Note: Only rated combinations are allowed to change this setting
9.10
OUTDOOR UNIT SETTINGS
To completely configure the gas furnace, the CXTQ coil needs
to receive a signal from the outdoor unit. Some field settings or
optional PCB might be needed with outdoor unit. See outdoor
unit manuals.
10.
ACCESSORIES
1.
When installing separately sold accessories, such as a hu-
midifier, economizer, or air purifier (UV lamp), refer to the
installation manual provided with the accessory.
2.
Connect the wires of the separately sold accessory by run-
ning the wiring through the control panel bushing and mak-
ing the wiring connection to the appropriate terminal block.
Refer to the wiring diagram inside the unit.
.
3.
Set the appropriate field settings to adjust the gas furnace’s
fan operation when the UV lamp or humidifier is operating.
Refer to Table 18.
Termina l Na me
Input/output s ignal
CONTROL ON/OFF
Outputs : i ndoor unit ON
(Wet conta ct 24V) 11.5VA or les s
ECONOMIZER 2
Output: i ndoor uni t cooli ng THERMO ON
(Wet conta ct 24V) 11.5VA or les s
ECONOMIZER 1
Recei ves input: Economizer opera ti on ON
(Dry conta ct)
HUMIDIFIER
Recei ves input: Humidi fi er opera tion ON
(Dry conta ct)
AIR CLEANER
Recei ves input: Ai r puri fi er opera tion ON
(Dry conta ct)
. UV lamp + humidifier fan speed
This setting controls the blower fan speed when a field in-
stalled UV lamp or humidifier is running.
. Heat pump standby duration
Once the economizer operation starts, the operation of the
economizer will continue for at least the duration tabulated
in Table 18.
01 02
03
04
05
UV lamp + humidifier fan
speed
User set
speed
High
User set
speed
High
User set
speed
Heat pump standby duration
(min)
10
10
20
20
30
OPTIONAL ACCESSORY
CONFIGURATION
MODE
NO.
FIRST CODE
NO.
14 (24)
4
SECOND CODE NO.
06
07
08
09
10
UV lamp + humidifier fan
speed
High
User set
speed
High
User set
speed
High
Heat pump standby duration
(min)
30
40
40
50
50
SECOND CODE NO.
GAS FURNACE SETTING
MODE
NO.
FIRST CODE
NO.
14 (24)
4
11
12
13
14*
UV lamp + humidifier fan
speed
User set
speed
High
User set
speed
High
Heat pump standby duration
(min)
60
60
Free
cooling
only
Free
cooling
only
*Factory set
14 (24)
4
SECOND CODE NO.
GAS FURNACE SETTING
MODE
NO.
FIRST CODE
NO.
Table 18
10.1
SETTINGS FOR SEPARATELY SOLD
ACCESSORIES
•
See the instruction manuals included with each of the
optional accessories for the necessary settings.
When using a wireless remote controller
•
The address of the controller should be assigned during ini-
tial set-up. See the installation manual included with the wire-
less remote controller for details on how to set the address.
