Address Settings; Location Of Wiring Connections; Test Run; How To Handle Problems With The Test Run - Mitsubishi Electric PUH-P10MYA Installation Manual

Example
[Fig. 9.2.1] (P.4)
(1) Connecting with PEH-P8, 10
(2) Free multi-component system
1 Without heater
2 With heater
(3) Grouping (16 outdoor units)
(4) Connecting with PEH-P16, 20
(5) Grouping (16 outdoor units) [Connecting with PEH-P16, 20]
1 single
2 twin
A Power supply B Breaker
D Remote controller E Indoor unit

9.3. Address settings

Outdoor unit address settings
•
When controlling a group, the address must be set for each outdoor unit.
•
During address setting, set all the dip switches SW1 (3 - 6) on the board to
<when shipped from factory: all OFF>. (Address setting is not necessary for
1:1 or Free multi-component systems.)
•
Settings using SW1 are given below.
•
Please set the mutually different address, and prevent the start up simultane-
ously. (In case of connecting with PEH-P16, 20)

10. Test run

10.1. Test run
The test run can be carried out either from the outdoor unit or the indoor unit.
1. Checklist
•
After the installation, piping setup, and wiring of the indoor and outdoor units is
complete, check that refrigerant is not leaking, the power and control wires are
not loose, and the poles are not reversed. (When connecting model PEH-P-
MYA in particular, check that there is current in the separate power supply
cable for the indoor unit.)
•
Use a 500 V insulation resistance tester to make sure that the resistance be-
tween the power terminal and the ground is 1.0 MΩ or more. If it is less than
1.0 MΩ, do not operate the unit. * Absolutely do not touch the tester to indoor/
outdoor connection terminals S1, S2, and S3. An accident could occur.
•
Make sure there is no malfunction in the outdoor unit. (If there is a malfunction,
you can diagnose it using LED2 on the board.)
•
Check that the ball valve is fully open on both the liquid and gas ends.
•
Check the electrical power phase. If the phase is reversed, the fan may rotate
in the wrong direction or stop, or unusual sounds may be produced.
•
Starting at least 12 hours before the test run, send current through the
crankcase heater. (If the current is running for a shorter period of time,
damage to the compressor could result.)
After the above checks are complete, carry out the test run as indicated in the
following outline.

10.2. How to handle problems with the test run

Error code list: details
Remote controller communication – reception error
Remote controller communication – transmission error
Remote controller communication – reception error
Remote controller communication – transmission error
Communication between indoor and outdoor units – reception error
Communication between indoor and outdoor units – transmission error
Communication between indoor and outdoor units – reception error
Communication between indoor and outdoor units – transmission error
Indoor/outdoor connection wiring error, indoor unit overload (5 units or more)
Indoor/outdoor connection wiring error (interference, loose)
Excessive time in use
Serial communication error
Serial communication error
12
C Switch box
F Address
Error details
(SW1)
OFF ON
Model
1
2 1 –
3
2 Error history clear
4
3 Refrigerant system
5
address setting
6
↑
4
↑
5
↑
6
[Fig. 9.3.1] (P.5)

9.4. Location of wiring connections

•
Using the conduit mounting plates
Conduit mounting plates are supplied in three sizes (ø27, ø34, ø40). Choose
the size of mounting plate that matches the outer diameter of the conduit being
used.
[Fig. 9.4.1] (P.5)
A When installing conduct from bottom panel
B When installing conduct from front panel
C Mounting plate (attached)
D Knock-out hole
2. Starting and finishing the test run
•
Procedure from the indoor unit: carry out the test run as in the manual provided
with the indoor unit.
•
Procedure from the outdoor unit: start and stop the test run and set test run
mode (cooling/heating) using the SW4 dip switches on the board.
1 Set test run mode (cooling/heating) using SW 4-2.
2 The test run will begin when SW 4-1 is turned ON, according to the mode
selected by SW 4-2.
3 The test run is stopped when SW 4-1 is turned OFF.
1
2
Note:
Test run mode cannot be stopped during operation by using SW 4-2. (If the
operation mode is to be changed, first stop it using SW 4-1, then after chang-
ing the operation mode, start the test run again using SW 4-1.)
•
If the 2-hour timer is set, the test run will stop automatically after 2 hours.
•
During the test run, the room temperature display on the indoor unit will indi-
cate the temperature of the indoor unit piping.
•
When you operate the test run from OC1, all trial runs are completed by OC1
→ IC1 → MA → IC1 → OC2.
(IC1) PEH-P16, 20 MA
OC1 OC2
Problem location MELANS display
Remote Controller 6831,6834
Remote Controller
6832,6833
Indoor unit
6831,6834
Indoor unit
6832,6833
6740,6843
Indoor unit
6841,6842
Indoor unit
Outdoor unit 6840,6843
Outdoor unit 6841,6842
Outdoor unit
Outdoor unit
Outdoor unit
Outdoor unit
M-NET board
Operation by switch manipulation
ON OFF
– –
Clear Ordinary
Outdoor unit address
Settings 0 - 15
<SW4>
OFF
ON
Remote controller
display
E0
E3
E4
E5
E6
E7
E8
E9
EA
6844
EB
6845
EC
6846
ED
0403
EE
0403