Panasonic U-26PE1U6, Technical Data & Service Manual

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1. Specifications
1. Specifications
NOTE
(1)
1)
2)
3)
Check to make sure that the electrical wiring and ducting have been completed. Activate the stand-by mode.
In particular, make sure that the closed damper located in the middle of the duct is open, if installed.
Also, make sure that air filters have been installed inside the air inlet duct. Check to make sure air is not leaking
from the joints.
If multiple air outlets and air inlets are included, adjust the airflow volume ratio of all of them until they meet the
design airflow ratio.
Make sure the address setting has been completed.
(2)
(3)
(4)
(5)
(6)
Check the following items before performing the setting-check operations or auto airflow volume operations.
The operation check will be completed in approximately three minutes if the settings have been made correctly.
The settings will be modified if they are out of the range of use (maximum 30 minutes). If this is not completed within
31 minutes, check whether the air speed is set to “H” or not.
Refer to Table 1-2 and Fig. 1-2 for details on the relationship between the value of item code “b0” and the external
static pressure.
When set in group control (connecting multiple indoor units with one wired remote controller), set each indoor unit to
item code “b0”. When amending the setting after selecting [ b. Manual setting] (due to airflow path changes, etc.),
it is necessary to cancel [b. Manual setting] (disconnect short-circuit connector). When [b. Manual setting] has not
been cancelled, [c. Manual setting] and [d. Auto airflow volume setting] will be activated if selected, but [b. Manual
setting] takes precedence when the power is switched back on after power outages, etc.
If this is not completed within 8 minutes, check the drive mode, air speed and air inlet temperature.
When set in group control (connecting multiple indoor units with one wired remote controller), the test run operations
display will disappear once the external static pressure setting check or auto airflow volume control operation check
have been completed for the main unit. Decisions on sub-unit complete are not possible. The test run operation
display will disappear after one hour even if the external static pressure setting check or auto airflow volume control
operation check have not been completed.
CAUTION
There are cases in which automatic variable dampers and other mounted items may trigger the P12 alarm on
systems that modify the static pressure of outdoor units when the auto airflow volume control operations or
setting check operations are carried out if high static pressure in the outdoor unit is lowered.
In this event, lower the dampers, etc., so that the static pressure in the outdoor unit reaches its lowest level,
and then carry out the auto airflow volume control operations or setting check operations.
Be sure to set the [External Static Pressure Setting] once again after amending the airflow path for the duct
or air outlet after setting the external static pressure.
Make sure the external static pressure is in a range of specifications.
Then proceed the external static pressure setting. Improper settings can cause noise, a shortage of airflow
volume and water leakage. Refer to Fig. 1-2 for the external static pressure setting range.
Set the air inlet temperature within the range for use. The auto airflow volume control will not function if the
air inlet temperature is over 113°F(45°C) or not in the fan mode.
1
1-10-1. How to Set on PC Board
Table 1-1 Selection of connected short-
circuit pins
TP6 TP3 TP1
TP6 TP3 TP1
White Yellow Red
Indoor Unit control PC board
Fig. 1-1
Table 1-2 Setting the external static pressure
1-10-2. Operating the Timer Remote Controller (CZ-RTC2)
1-10-2-1. How to set the external static pressure
1. , and buttons
simultaneously for 4 or more seconds.
(
, the Unit No., Item Code and Detailed Data will blink on the LCD display.)
2.
.
Only the fan motor for the selected indoor unit will operate during this.
3. ” item code by pressing the /
temperature setting buttons and confirm the values.
buttons for the
(“ ” set at shipment )
4.
Press and hold down the
The indoor unit numbers in the group control will be sequentially displayed
whenever the Unit Select button is pressed
Specify the “
Press the / buttons for the time to amend the values for the set data.
Refer to table 1-2 and Fig. 1-2 and select a value between “
“
” and
”. Select “ ” if the auto airflow volume setting is activated.
5. button. The display will stop blinking and remain illuminated.
6.
Press the
Press the
button. The fan motor will stop
operating and the LCD display will return to the normal stop mode.
6
2
1 5 1
4
3
NOTE:
Failure to set this parameter may result
in decreased airflow and condensation.
2
1
5
3
1-10-2-2. Auto External Static Pressure Setting Operation
and Setting-Check Operation
1. button for 4 or more seconds.
“ ” will be displayed on the LCD display.
2. button to start the test run. [Test Run] will be displayed
on the LCD display.
3.
Press and hold down the
Press the
Select the fan mode and set it to “H” by pressing the button.
NOTE
The auto external static pressure setting operation and setting-check operation
will not be performed unless [H] has been selected for the fan mode.
4.
5.
The fan motor will be activated, the auto external static pressure setting operation
and setting-check operation will be performed for about 3 to 30 minutes.
The fan speed will change automatically while these operations are in progress.
When these operations completed, “TEST” will be disappeared from the LCD display.
Press the
button to halt the test run.
1. Turn off the power breaker to halt the supply of electricity to the
PC board.
2. Open the lid of electrical equipment box and check where the short-
circuit pin on the indoor unit control PC board is located (Fig. 1-1)
3. Short circuit the applicable short-circuit pin in accordance with the
selected short-circuit pin connected (Fig. 1-2).
0.60 in.WC (150 Pa) : TP3 (2P: yellow) short-circuit
0.56 in.WC (140 Pa) : TP1 (2P: red) short-circuit
* Use the short-circuit connector (2P: yellow) supplied.
External static pressure
at the time of rated
airflow volume
Short-circuit pin
Unusable TP6 (2P: white)
0.60 in.WC (150 Pa) TP3 (2P: yellow)
0.56 in.WC (140 Pa) TP1 (2P: red)
Indoor unit Item code
26 36
b0
External static pressure of the rated air flow
volume
0.60 in.WC (150 Pa) 0.60 in.WC (150 Pa)
0.56 in.WC (140 Pa) 0.56 in.WC (140 Pa)
0.52 in.WC (130 Pa) 0.52 in.WC (130 Pa)
0.48 in.WC (120 Pa) 0.48 in.WC (120 Pa)
0.40 in.WC (100 Pa) 0.44 in.WC (110 Pa)
0.28 in.WC (70 Pa) 0.40 in.WC (100 Pa)
0.24 in.WC (60 Pa) 0.28 in.WC (70 Pa)
0.20 in.WC (50 Pa) 0.20 in.WC (50 Pa)
0.12 in.WC (30 Pa) 0.12 in.WC (30 Pa)
0.04 in.WC (10 Pa) 0.04 in.WC (10 Pa)
No auto airflow volume setting
Auto airflow volume setting
1
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