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6. Electrical work
6.1. Outdoor unit (Fig. 6-1, Fig. 6-2)
1
Remove the service panel.
2
Wire the cables referring to the Fig. 6-1 and the Fig. 6-2.
Fig. 6-1
6.2. Field electrical wiring
Outdoor unit power supply
~/N (single), 50 Hz, 230 V
Outdoor unit Circuit Breaker capacity
*1
25 A
Wiring
Wire No. × size (mm
2
)
Outdoor unit power supply, earth
3 × Min. 4
Controller-Outdoor unit
*2
8 × Min. 0.5 (polar)
Circuit rating
Outdoor unit L-N (single)
AC 230 V
Controller-Outdoor unit
DC 12 V
*1. A breaker with at least 3.0 mm contact separation in each poles shall be provided. Use non-fuse breaker (NF) or earth leakage breaker (NV).
*2. Max. 20 m
Notes: 1. Wiring size must comply with the applicable local and national codes.
2. Power supply cables and the cables between Controller and Outdoor unit shall not be lighter than polychloroprene sheathed fl exible cables.
(Design 60245 IEC 57)
3. Be sure to connect the cables between Controller and Outdoor unit directly to the units (no intermediate connections are allowed).
Intermediate connections may result in communication errors. If water enters at the intermediate connection point, it may cause insuffi cient insula-
tion to ground or a poor electrical contact .
(If an intermediate connection is necessary, be sure to take measures to prevent water from entering the cables.)
4. Install an earth longer than other cables.
Terminal block
Clamp
Clamp
Service panel
Wire the cables so that they do
not contact the center of the
service panel.
Fig. 6-2
Controller
Outdoor unit
Breaker
Earth
To the clamp
To the clamp
5
4. Drainage piping work
5.1. Water piping connection (Fig.5-1)
• Connect the water pipes to the outlet and to the inlet pipes
(ISO 228/1-G1B).
• Inlet and outlet pipes position is shown on the Fig.5-1.
• Install the hydraulic fi lter at the water intake.
• Maxmum allowable torque at the water piping connection is 50 N
•
m.
• When tightening, use two wrenches.
• Check if water leaks after installation.
• Use the water pressure in less than 0.3MPa gauge.
5.2. Water quality condition
• The water in a system should be clean and with a pH value of 6.5-8.0.
• The followings are the maximum values;
Calcium : 100mg/L
Chlorine : 100mg/L
Iron/manganese : 0.5mg/L
[Fig. 5-1]
Water outlet
Water inlet
Note : Insulate the water piping properly. The performance can be poor if the
insulation is insuffi cient.
Warning:
As the outlet water temperature can reach 60ºC at maximum, do not touch
directly the water piping with a bare hand.
Optional parts name
Model name
Drain socket
PAC-SG61DS-E
Drain pan
PAC-SG64DP-E
5. Water piping work
Outdoor unit pipe connection
When drain piping is necessary, use the drain socket or the drain pan (option).
Fig. 5-1
*1. An isolator with at least 3.0 mm contact separation in each poles shall be provided. Use non-fuse breaker (NF) or earth leakage breaker (NV).
*2. Max. 20 m.
The isolator should be fitted outside adjacent to the Mitsubishi heat pump in accordance with IEE wiring regulations.
Notes: 1. Wiring size must comply with the applicable local and national codes.
2. Power supply cables and the cables between Controller and Outdoor unit shall not be lighter than polychloroprene sheathed flexible cables.
(Design 60245 IEC 57).
3. Be sure to connect the cables between Controller and Outdoor unit directly to the units (no intermediate connections are allowed). Intermediate
connections may result in communication errors. If water enters at the intermediate connection point, it may cause insufficient insulation to ground or a
poor electrical contact. (If an intermediate connection is necessary, be sure to take measures to prevent water from entering the cables.)
4. Install an earth longer than other cables.
5.1. Water piping connection (Fig.5-1)
• Connect the water pipes to the outlet and to the inlet pipes
(ISO 228/1-G1B).
• Inlet and outlet pipes position is shown on the Fig.5-1.
• Install the hydraulic fi lter at the water intake.
• Maxmum allowable torque at the water piping connection is 50 N
•
m.
• When tightening, use two wrenches.
• Check if water leaks after installation.
• Use the water pressure in less than 0.3MPa gauge.
5.2. Water quality condition
• The water in a system should be clean and with a pH value of 6.5-8.0.
• The followings are the maximum values;
Calcium : 100mg/L
Chlorine : 100mg/L
Iron/manganese : 0.5mg/L
[Fig. 5-1]
Water outlet
Water inlet
Note : Insulate the water piping properly. The performance can be poor if the
insulation is insuffi cient.
5. Water piping work
Fig. 5-1
[Fig. 5-1]
A
Water outlet
B
Water inlet
insulation is insuffi
Warning:
As the outlet water temperature can reach 60ºC at maximum, do not touch
Notes: Details of the termination of the eight wire signal cable in the
Mitsubishi (external) and Gledhill (internal) appliance is shown
in the Gledhill BoilerMate HP-DEM part of this manual.
Fig. 6-1
-/N (single), 50 Hz, 230 V
25 A
3 x 4mm
2
minimum
8 x 0.5mm
2
minimum
AC 230 V
DC 12 V
Outdoor unit power supply
Outdoor unit circuit breaker capacity
Circuit rating
Outdoor unit power supply, earth
Interconnecting wiring
Outdoor unit L-N (single)
Controller - outdoor unit
Wiring
wire no. x size (mm
2
)
*1
*2
6. Electrical work
6.1. Outdoor unit (Fig. 6-1, Fig. 6-2)
1
Remove the service panel.
2
Wire the cables referring to the Fig. 6-1 and the Fig. 6-2.
Fig. 6-1
6.2. Field electrical wiring
Terminal block
Clamp
Clamp
Service panel
Wire the cables so that they do
not contact the center of the
service panel.
Fig. 6-2
Controller
Outdoor unit
Breaker
Earth
To the clamp
To the clamp
Note : Insulate the water piping properly. The performance can be poor if the
insulation is insuffi cient.
Warning:
As the outlet water temperature can reach 60ºC at maximum, do not touch
directly the water piping with a bare hand.
Fig. 5-1
To protect against frost/corrosion, the water in the primary system shall
be treated with a suitable combined antifreeze/inhibitor (such as Fernox Alphi-11)
installed fully in accordance with the manufacturers instructions.
The Fernox Boiler Buddy is provided to help maintain the system water quality and
allow a visual check to be made of its condition.
INST
ALL
A
TION MANU
AL
ECODAN AIR SOURCE HEAT PUMP
