1.7. Before starting the test run
Caution:
- Turn on the power at least 12 hours before starting operation.
- Starting operation immediately after turning on the main power
switch can result in severe damage to internal parts. Keep the
power switch turned on during the operational season.
- Do not touch the switches with wet fingers.
- Touching a switch with wet fingers can cause electrification.
- Do not touch the refrigerant pipes during and immediately after operation.
- During and immediately after operation, the refrigerant pipes are may be
hot or cold, depending on the condition of the refrigerant flowing through
the refrigerant piping, compressor, and other refrigerant cycle parts. Your
hands may suffer burns or frostbite if you touch the refrigerant pipes.
2. Accessories
The unit is provided with the following accessories:
No.
Accessories
Pipe insulation
1
Flare insulation
2
Tie band
3
Duct connecting flanges
4
Mounting screws
5
3. Outline drawings
(Exhaust air)
(Outdoor air)
Lossnay core
High efficiency filter
Maintenance space
Maintenance cover
Can install upper area of ceiling suspension fixture
(GUF-100RDH4, 100RD4)
Ceiling suspension fixture
Location at which the duct direction can be changed
External dimension
Model
A
B
C
GUF-50RDH4,
1288 1016
317
GUF-50RD4
GUF-100RDH4,
1580 1231
398
GUF-100RD4
Qty
2
2
4
4
16
Location at which the duct direction can be changed
N
D
Air exhaust fan
EA
OA
Air filter
N
Inspection
opening
Fan
T
High efficiency filter
Lossnay core
(Optional part)
79
(N)
Water intake strainer
Air filters
with check valve*
(PT1/2 External thread)
Ceiling suspension
Duct connection flange
fixture pitch
Nominal
D
E
F
G
diameter
1185 1048
22
200
158.5 192
1465 1271
16
250
199
- Do not operate the Fresh Master and outdoor unit with the
panels and guards removed.
- Rotating, hot, or high-voltage parts can cause injuries.
- Do not turn off the power immediately after stopping operation.
- Always wait at least five minutes before turning off the power.
Otherwise, water leakage and trouble may occur.
Damper plate
Ceiling suspension fixture (4-13×30 length hole for GUF-50RDH4, 50RD4)
Ceiling suspension fixture (4-15×30 length hole for GUF-100RDH4, 100RD4)
RA
(Return air)
Air supply fan
SA
(Supply air)
Solenoid valve unit with
pressure regulator*
Inspection
Solenoid valve
Power cable instal-
opening
Heat exchange unit
Humidifying element
Maintenance space
Control box
Heat exchanger
A
79
S (Water intake)
79
Humidifying element*
Maintenance cover
P
Gas pipe
(Discharge hole)
Liquid pipe
Drain discharge hole
(VP25 connection)
Duct pitch
H
J
K
L
M
208
745 372.5 435
242
258
920
460
670
G
C
lation port
(* GUF-50, 100RDH4 only)
Inspection
Humidification
opening
N
P
Q
R
S
124
347
135
99
266
149
361
169
110
280
*Values shown in parentheses "( )" are for RD4.
Unit (mm)
Weight
(kg)
T
57
450
(54)
98
600
(92)
5