Daikin CXTQ36TASBLUA Installation Manual page 18

FORCED OFF
Input A "on" to force a
Uni t opera ted by
s top
cha ngi ng
(operati on from remote
i nput A from "off" to "on"
control l er prohi bi ted)
Input A "off" to a l l ow Uni t s topped by cha ngi ng
remote control l er i nput A from "on" to "off"
9.3 SETTING THE FILTER SIGN DISPLAY INTERVAL
The Return Air Filter should be cleaned regularly to prevent
clogging.
Explain to the customer that the 'Time to clean filter' message
on the controller is used as a reminder to clean/replace the
filter. The default display time is set to 2500 hours (equivalent
to 1 years's use).
The filter dirt settings may be changed to accommodate the
operational conditions of the unit, or to meet customer prefer-
ences. For example, if the unit is installed in a dusty place,
the filter sign display should be set to a shorter time interval
(1,250 hours). See Table 10 for display settings.
FILTER DISPLAY SETTINGS
Filter dirt
Display timer, hours (low/high)
Filter sign display
*Factory set
9.4 RETURN AIR FILTER
Each installation must include a return air filter. This filtering may
be performed externally such as a return air filter grille. Wash-
able versions are available through your local Daikin distributor.
• Do not operate this product without all the ductwork attached.
GAS FURNACE SETTING
GAS FURNACE SETTING
Run gas furnace during defrost/oil
return operation
** Heat pump prohibition duration
GAS FURNACE SETTING
Run gas furnace during defrost/oil
return operation
** Heat pump prohibition duration
*Factory set
**This time means the duration which CXTQ does not start heat pump operation after
starting a gas furnace. Applicable when the CXTQ operates heat pump and gas furnace
18
SYSTEM/
ON/OFF OPERATION EQUIPMENT
PROTECTION
Input A "off"
wi l l s top the
s ys tem and
di s pl a y the
a ppropri a te
error code.
Table 9
MODE FIRST CODE SECOND CODE NO.
NO. NO.
01*
0 Low
2,500 /
10 (20) 1
1,250
3 ON
Table 10
MODE FIRST SECOND CODE NO.
NO. CODE NO.
01 02
Not Not
allowed allowed
11 (21) 3
15 min 30 min
MODE FIRST SECOND CODE NO.
NO. CODE NO.
07* 09
Allowed Allowed Allowed
11 (21) 3
15 min 30 min
Table 11
When the defrost cycle is initiated, the discharge air tempera-
ture may fall for a short period of time. If at any time this be-
comes uncomfortable, the gas furnace operation during defrost
can be disabled using field setting 11(21)-3.
9.5.1 GAS FURNACE ON/OFF TEMPERATURE
SETTING
When the gas furnace is used to supplement the heat pump
heating, the gas furnace ON/OFF temperatures, Ton and Toff,
can be selected individually by switching the 1st code and 2nd
code according to the following table. This gas furnace control
will only work with restricted outdoor unit combination.
ON
Gas Furnace
OFF
ON
Heat Pump
OFF
02
High
10,000 /
Perform on-site setting using the remote controller.
5,000
OFF
Temperature difference must be 3.6ºF or more between "Ton"
and "Toff" to activate setting(s).
MODE FIRST CODE
SYMBOL
NO. NO.
Ton 1
11 (21)
Toff 2
*Factory set
If you don't need to operate the gas furnace by this control,
change both settings 11(21) -1 and 11(21) -2 to second code
no. 07.
03
When there are two CXTQ coils connected to the same
Not
residential outdoor unit, both field settings, 11(21)-1 and
allowed
11(21)-2 , must be set to "07". Otherwise, the system will not
45 min
operate properly in heating mode.
11
45 min
SP (Set Point)
《Ton》＋S ※ 《Toff》＋S ※
0.9°F 0.9°F
SECOND CODE NO.
01 02 03 04 05
-7.2* -6.3 -5.4 -4.5 -3.6
(-4.0) (-3.5) (-3.0) (-2.5) (-2.0)
-3.6 -2.7 -1.8 -0.9 0*
(-2.0) (-1.5) (-1.0) (-0.5) (0)
Table 12
Room
temperature
°F(°C)
06 07
-2.7 HP
(-1.5) ONLY
0.9 HP
(0.5) ONLY
English