Drain Piping - Toshiba Carrier MMD-AP0304H2UL Manuel D'installation

Wire connection change of fan motor
Connecting wire of the fan motor has been connected to [F2] [External static pressure 14 mmAq (137 Pa)] factory
default.
If it is necessary to change the external static pressure in accordance with duct resistance, change the connection.
FM
Fan motor
F1 F2
Orange (Factory default)
Lead wire for changing the external static pressure.
When changing the external static pressure is
necessary, change connection of this lead wire.
REQUIREMENT
If changing the external static pressure, write the static pressure after change in the nameplate of the unit.
Model name
Voltage / Frequency
Terminal
Wire color
clock No.
F1 Blue
Fan motor wiring
F2 Orange
F3 Black
Model name
Voltage / Frequency
Terminal
Wire color
clock No.
F1 Blue
Fan motor wiring
F2 Orange
F3 Black
13-EN
Control
substrate
F3 F4
4P Terminal block
2P Terminal block
MMD-AP0304H2UL, AP0364H2UL
208 V / 60 Hz 230 V / 60 Hz
External static pressure External static pressure
Wire color
(in.WG)
0.287 Blue
0.641 Orange
1.075 Black
MMD-AP0484H2UL
208 V / 60 Hz 230 V / 60 Hz
External static pressure External static pressure
Wire color
(in.WG)
– Blue
0.296 Orange
0.606 Black
– 7 –
6

Drain piping

CAUTION
Following the Installation Manual, perform the drain piping work so that water is properly drained. Apply a heat
insulation so as not to cause a dew condensation.
Inappropriate piping work may result in water leakage in the room and wet furniture.
• The draining method is a natural draining. Therefore, slope the piping outside of the unit downward (at 1/50 to 1/100), and
do not put an angle halfway. If doing so, an abnormal sound may be caused.
Electrical control box
• To prevent overflow of drain pipe, set a drain trap on its way as shown in the right figure.
[The drain trap is required for preventing aspiration of smell through the drain pipe, and also for preventing hardness of
draining because the differential pressure between the drain pan and atmosphere becomes large when the external static
pressure is high (especially, at suction side).]
• Dust inside of the drain pipe is easy to be heaped at the drain trap. Be sure to set a plug so that the drain trap can be cleaned.
• Maximum horizontal drain pipe length should be less than 65.6' (20 m) or shorter.
If the pipe is long, set the support brackets with 4'11" to 6'7" (1.5 to 2 m) interval to prevent waving.
• Mount the collective drain pipe as shown in the right figure.
• Do not mount an air purge pipe.
Otherwise drain water spouts out resulted in water leak.
• Do not apply strength to the connecting part with the drain pipe.
• Do heat insulating securely to the indoor drain pipe.
• Do heat insulating to the connecting part with the indoor unit.
Incomplete heat insulating may cause dewing.
(in.WG)
0.506
0.814
1.175
Pipe material, size and insulator
The following materials for piping work and insulating process are locally procured.
(in.WG)
Pipe material
0.114
Insulator
0.519
0.801
Service panel Drain pipe Service panel
Collective
drain pipe
Plug (Port for check
Plug (Port for check
and cleaning)
and cleaning)
Hard vinyl chloride pipe VP25 (Nominal outer diameter Ø1.3" (32 mm))
Foamed polyethylene foam, thickness: 0.4" (10 mm) or more
14-EN