Mitsubishi Electric Fresh Master GUF-50RDH4 Installation Instructions Manual page 18

8.6. Connecting electrical connections
1. Remove the 4 screws to remove the control box cover.
Screw
2. Install a PG connection or the like, then connect the power supply
cable to the TM1 terminal block.
Terminal block (TM1)
Grounding wire
Caution:
- Wire the power supply so that no tension is imparted. Other-
wise disconnection, heating or fire may result.
Controller box cover
L
Name plate
N
PE
PG connection or the like
Power supply cable
3. Connect the transmission line to the TM2 terminal block as shown
in the diagram.
PG connection
or the like
Terminal block (TM3)
Short-circuit
piece
Terminal block (TM2)
4. When connecting the humidistat input, remove the short-circuit
piece from the TM3 terminal block as shown in the diagram, then
install a PG connector and connect to the TM3 terminal block.
* The humidistat is the sensor designed specifically for the control
of moisture environment.
The suitable model in this stage :
Uncharged a-contact turns on when atmospheric moisture
content becomes less than your preset minimum allowable
percentage.
Humidistat cable
PVC insulated PVC
jacketed control cable 0.75
mm . Recommended type
2
H03VV-F, H05VV-F.
Humidistat *
Uncharged
a-contact
240 V AC more
than 10 mA
PAR-21MAA
(Remote
controller)
12
11
Transmission cable
10
to terminal block
for Fresh Master
9
outdoor and BC
8 controller
7
1
2
A
B
S
16