Check Points After Installation Work - Mitsubishi Electric Fresh Master GUF-50RDH4 Installation Instructions Manual

9.3.9. Selecting the fan speed control method
This setting is used to select whether to operate according to the
fan speed requested by the indoor unit, or to operate in high or low
speed.
Switch OFF ON
Following the selected fan speed from
7
controllers.*
8
7 Following the selected fan speed from
controllers.
8
SW2
High fan speed mode (notch constantly on
7
high)
8
7
Low fan speed mode (notch constantly on
8
low)
* When factory shipped.

10. Check points after installation work

After installation work, please double-check the points below. If there is any troubles, it must be done correctly.
(1) Check points - Unit installation
Are the outdoor ducts (2) and the indoor supply duct (1) covered with heat insulating material? ..................................................page 7
Are the outdoor ducts provided with 1/30 or more downward gradient toward the wall? ...............................................................page 7
Are the outdoor ducts provided with enough distance of at least 1 m for type 50 and at least 2.5 m for type 100? .....................page 7
Is the Fresh Master securely installed without loose attachment? .................................................................................................page 6
Has the heat insulating work been completed for refrigerant, drain and water supply pipes? .......................................................page 8-11
Are refrigerant, drain or water supply pipes correctly routed? .......................................................................................................page 8-11
Does the refrigerant type conform to the one indicated on the name plate? .................................................................................page 9
Has the gas leak test been conducted? .........................................................................................................................................page 9
Has the drainage check been finished? .........................................................................................................................................page 8
Have the valves at both the higher and the lower pressure sides been checked to be fully open? ...............................................page 19
Has the power been turned on for at least 12 hours before test run? ............................................................................................page 6
Aren't the inlet and the outlet ports of the Fresh Master and the outdoor unit plugged?................................................................page 6
(2) Check points - Wiring work
Does the supply power voltage conform to the specification? .......................................................................................................page 13, 14
Is the wiring work the same as wring diagram? .............................................................................................................................page 13, 14
Is wiring securely connected to the terminal block? .......................................................................................................................page 16
Is wiring firmly secured ? ...............................................................................................................................................................page 16
Is the connecter on the circuit board connected certainly? ............................................................................................................page 13, 14
Is the unit properly grounded? .......................................................................................................................................................page 13, 14
Do the power supply cable and the transmission cables satisfy the specified diameter and specification? ..................................page 13, 14
(3) Check points - Switch setting
Are the Address setting switches (SW11 and SW12) set correctly? ..............................................................................................page 17
In the case of connecting to R2 series outdoor unit, is the branch controller No. setting switch (SW14) properly set? ................page 17
When the remote controller is to be used, is the switch (SW3-1) correctly set ? ...........................................................................page 20
Are functions correctly set using the remote controller? ................................................................................................................page 20-21
Are the Function setting switches (SW1, SW2 and SW3) set correctly? .......................................................................................page 17-20
11. Test run
Read the operation manual, too.
- After installing, piping and wiring the Fresh Master and outdoor
units, make sure again that there is no refrigerant leakage, no
slack on the power and transmission cables, or no polarity mis-
takes.
- Make sure using a 500 V DC megger that the resistance between
the power terminal bed and ground is more than 2.0 MΩ. If less
than 2.0 MΩ, do not operate the unit.
- Check that the valves at both the higher and the lower pressure
sides are fully open and fasten the cap without fail.
9.3.10. Room temperature control (GUF-50,
Room temperature detected at main unit is decreased by 4°C when
heating.
Mode
Switch
9.3.11. Room temperature sensor position
Switch
- Never measure the insulation resistance of the terminal block
for transmission cables.
- When operating the Fresh Master for a test run, be sure there
is no water leakage.
100RD4 only)
OFF ON
8
Effective*
SW3
8 Ineffective
(GUF-50, 100RD4 only)
OFF ON
9 Fresh Master's return air*
SW3
9 Built in the Remote controller.
Warning:
Caution:
Mode
Mode
19