Mitsubishi Heavy Industries FDT200VSAWPVH Service Manual page 150

⑨Wiring-out position and wiring connection
● Electrical installation work must be performed according to the installation manual by an
electrical installation service provider qualified by a power provider of the country, and be
executed according to the technical standards and other regulations applicable to electrical
installation in the country.
Be sure to use an exclusive circuit.
● Use specified cord, fasten the wiring to the terminal securely, and hold the cord securely in
order not to apply unexpected stress on the terminal.
● Do not put both power source line and signal line on the same route. It may cause miscom-
munication and malfunction.
● For the details of electrical wiring work, see attached instruction manual for electrical wiring
work.
1. Remove a lid of the control box (2 screws).
2. Hold each wiring inside the unit and fasten them to terminal block securely.
3. Fix the wiring with clamps.
4. Install the removed parts back to original place.
Main fuse
F3 (T 10A L 250V)
*
Multi unit wiring connection
⑩External static pressure setting
You can set External Static Pressure (E.S.P.) by method of MANUAL SETTING on remote control.
Indoor unit will control fan-speed to keep rated air flow volume at each fan speed setting (Lo-Uhi)
You can set required E.S.P. by wired remote control that calculated with the set air flow rate and
pressure loss of the duct connected.
● How to set E.S.P. by wired remote control
① Push "◆" marked button(E.S.P. button).
② Select indoor unit No. by using
button.
③ Select setting No. by using
button and
set E.S.P. by button.
See detailed procedure in technical manual.
Notice
You can not set E.S.P. by wireless remote control.
With E.S.P. setting, confirm that actual E.S.P. agrees with E.S.P. setting.
When E.S.P. setting is higher than actual E.S.P., the airflow rate becomes excessively higher.
This will cause water leakage if water splashes.
When E.S.P. setting is lower than actual E.S.P., the airflow rate becomes excessively lower and the
cooling or heating may become ineffective.
In order to reduce the risk above the factory E.S.P. setting is set within the range of 80 – 150 Pa
(E.S.P. setting No. 8 – 15). Be sure to use within the range of 80 – 150 Pa in actual operations. If
actual E.S.P. is lower than 80 Pa, it may cause water leakage.
Setting No.
8 9 10 11 12 13 14
E.S.P (Pa)
80 90 100 110 120 130 140
※ If 1 – 7 is selected for the setting No. on the remote control, the setting No. shows No. 8.
If 16 – 20 is selected for the setting No. on the remote control, the setting No. shows No. 15.
Factory default is No. 8.
The Case of FDU-F
Setting No.
1 2 3 4 5 6 7
E.S.P. (Pa)
10 20 30 40 50 60 70
※
If 13-20 is selected for the setting No. on the remote control, the setting No. shows No. 12.
※
Factory default is No. 8.
SW8-4
Main fuse
F3 (T 10A L 250V)
*
Single unit wiring connection
* Please fix the wiring in the band not to move even if it pulls.
Main fuse specification
Specification Part No.
T 10A L 250V SSA 564A149AL
E.S.P. button
15
150
8 9 10 11 12
80 90 100 110 120
ON ON
SW8-4:OFF SW8-4:ON
(E.S.P. setting No. 8-15) (E.S.P. setting No. 1-19)
⑩External static pressure setting
If SW8-4 is turned to "ON", E.S.P. setting range can be changed to 10 – 200 Pa (E.S.P. setting No.
1 – 19). This should not be used when actual E.S.P. cannot be confirmed, because the risk above
becomes higher.
Setting No.
1 2 3 4
E.S.P. (Pa)
10 20 30 40
※
If 20 is selected for the setting No. on the remote control, the setting No. shows No. 19.
⑪Check list after installation
●Check the following items after all installation work completed.
Check if
The indoor and outdoor units are fixed securely?
Inspection for leakage is done?
Insulation work is properly done?
Water is drained properly?
Power source voltage is same as mentioned in the model name plate?
No mis-wiring or mis-connection of piping?
Earth wiring is connected properly?
Cable size comply with specified size?
Any obstacle blocks airflow on air inlet and outlet?
Is setting of E.S.P finished?
149
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'21 • PAC-SM-383
5 6 7 8 9 10 11 12 13 14
50 60 70 80 90 100 110 120 130 140
Expected trouble
Falling, vibration, noise
Insufficient capacity
Water leakage
Water leakage
PCB burnt out, not working at all
PCB burnt out, not working at all
Electric shock
PCB burnt out, not working at all
Insufficient capacity
Excessive air flow, water drop blow out
15 16 17 18 19
150 160 170 180 200
Check