On/Off; Selecting Operation - Mitsubishi Electric PRH-P8 Operation Manual

Rooftop unit
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1Hr.
CENTRALLY CONTROLLED
ON OFF
˚C
CLOCK
CHECK
FILTER
CHECK MODE
˚C
TEST RUN
STAND BY
ERROR CODE
FUNCTION
NOT AVAILABLE
DEFROST
1
TEMP.

ON/OFF

B
2
FILTER
3
A
CHECK TEST
0
TIMER SET
PAR-20MAA
C
4 5 6 8 7 9
Remote controller-Button
1 [Room temperature adjustment] Button
7 [Up/down airflow direction] Button
2 [Timer/continuous] Button
8 [Ventilation] Button
3 [Selecting operation] Button
9 [Checking/built-in] Button
4 [Time selection] Button
0 [Test run] Button
A [Filter] Button
[Time-setting] Button
5 [Louver] Button
B [ON/OFF] Button
6 [Fan speed adjustment] Button
C Position of built-in room temperature
Never expose the remote controller to direct sunlight. Doing so can result in
the erroneous measurement of room temperature.
Never place any obstacle around the lower right-hand section of the remote
controller. Doing so can result in the erroneous measurement of room tem-
perature.
A
C
CENTRALLY CONTROLLED
1Hr.
ON OFF
˚C
E
CLOCK
CHECK
A
FILTER
CHECK MODE
˚C
TEST RUN
STAND BY
ERROR CODE
FUNCTION
NOT AVAILABLE
DEFROST
TEMP.
ON/OFF
B
1
FILTER
3
CHECK TEST
2
TIMER SET
PAR-20MAA
4
6 8 7
Before starting operation
Start running after the “HO” display has disappeared. The “HO” display briefly
appears on the room temperature display (max. 3 minutes) when the power is
turned on and after a power failure. This does not indicate any failure of the air
conditioner.
During heating operation, even if the indoor unit is set to operation while the
outdoor unit is in defrosting operation, operation starts after the defrosting op-
eration of the outdoor unit has ended.
3.1. ON/OFF
Start an operation
1. Press the B B B B B [ON/OFF] button
Operation lamp
lights up and operation starts.
Stop an operation
1. Press the B B B B B [ON/OFF] button again
Operation lamp goes off and operation stops.
Once the buttons have been set, pressing of the [ON/OFF] button only can
repeat the same operation thereafter.
During operation, the operation lamp above the [ON/OFF] button lights up.
Caution:
Even if the operation button is pressed immediately after the operation is
once stopped, operation is not restarted for about 3 minutes. This function
protects the machine. It automatically starts operation after the lapse of ap-
proximately 3 minutes.
D
C
B
A
U
T
Q
S
R
CENTRALLY CONTROLLED
1Hr.
P
ON OFF
˚C
E
CLOCK
CHECK
O
FILTER
CHECK MODE
˚C
N
TEST RUN
F
STAND BY
ERROR CODE
FUNCTION
NOT AVAILABLE
DEFROST
M
TEMP.
ON/OFF
H
I K L J
G
Remote controller-Display
A Current time/Timer
K Not available function
B Centralized control
L Ventilation
C Timer ON
M Function setting mode
D Abnormality occurs
N Test run mode
E Operation mode:
O Error check mode
COOL,
AUTO,
FAN,
HEAT
P Filter sign
F Preparing for Heating mode
Q Set effective for 1 hr.
G Defrost mode
R Sensor position
H Set temperature
S Room temperature
I Power ON
T Airflow
J Louver
U Fan speed

3.2. Selecting operation

When selecting operation
1. Press the 3 3 3 3 3 [selecting operation] button
Consecutive press of the selecting operation button switches the operation
over to E “
”, “
”, (“
”), and (“
”). For the contents of operation, check
the display.
For cooling
Press the 3 3 3 3 3 [selecting operation] button and bring up the “
” display.
For fan
Press the 3 3 3 3 3 [selecting operation] button and bring up the “
” display.
The fan operation functions to circulate the air in the room.
The temperature of the room cannot be set by fan operation.
Caution:
Never expose your body directly to cool air for a long time. Excessive expo-
sure to cool air is bad for your health, and should therefore be avoided.
For heating
Press the 3 3 3 3 3 [selecting operation] button to bring up the “
” display.
Regarding displays during heating operation “DEFROST”
Displayed only during the defrosting operation.
“STAND BY”
Displayed from the start of heating operation until the moment warm air blows out.
Caution:
When the air conditioner is used together with burners, thoroughly ven-
tilate the area. Insufficient ventilation can result in accidents due to oxy-
gen deficiency.
Never place a burner at a place where it is exposed to the airflow from the
air conditioner.
Doing so can result in imperfect combustion of the burner.
The microcomputer functions in the following cases:
Air does not blow out when heating starts.
- To prevent any cool air from escaping.
Wait a moment until the airflow comes out naturally.
The air keeps flowing out, even when the operation has been stopped.
For Approximately 1 minute after the operation stops, the fan sometimes
stays on to eliminate excess heat generated by various parts of the unit
such as the electric heater.
Air supply during thermo off can be stopped from the remote controller
provided that the remote controller is located within the air-conditioned
room and that the suction air temperature detection spot is switched
from “unit” to “remote control.”
5

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