Mitsumi electronic PQHY-P7296TGMU-A installation manual Test run, Information on rating plate

GB

10.4. Wiring of main power supply and equipment capacity

Schematic Drawing of Wiring (Example)

[Fig. 10.4.1] (P.5)

A Switch (breakers for wiring and current leakage)		B Breakers for current leakage					C Heat source unit
D Pull box		E Indoor unit
Thickness of wire for main power supply, On/Off capacities and system impedance
		Minimum wire thickness (mm2/AWG)			Switch (A)		Breaker for	Breaker for current leakage
		Main cable	Branch	Ground	Capacity	Fuse	wiring (NFB)
Heat source unit	P72	5.3/10	–	5.3/10	30	30	30	30	A 100 mA 0.1sec. or less
	P96	8.4/8	–	8.4/8	40	40	40	40	A 100 mA 0.1sec. or less
BC controller, indoor unit		0.41/22	0.41/22	0.41/22	15	15	15	20	A 30 mA 0.1sec. or less

1.Use a separate power supply for the heat source unit and indoor unit.

2.Bear in mind ambient conditions (ambient temperature,direct sunlight, rain water,etc.) when proceeding with the wiring and connections.

3.The wire size is the minimum value for metal conduit wiring. The power cord size should be 1 rank thicker consideration of voltage drops. Make sure the power-supply voltage does not drop more than 10 %.

4.Specific wiring requirements should adhere to the wiring regulations of the region.

5.Power supply cords of parts of appliances for heat source use shall not be lighter than polychloroprene sheathed flexible cord (design 245 IEC57). For example, use wiring such as YZW.

6.A switch with at least 3.5 mm [0.14 in] contact separation in each pole shall be provided by the Air conditioner installation.

Warning:

•Be sure to use specified wires to connect so that no external force is imparted to terminal connections. If connections are not fixed firmly, it may cause heating or fire.

•Be sure to use the appropriate type of overcurrent protection switch. Note that generated overcurrent may include some amount of direct current.

Caution:

•A breaker for current leakage must be attached to the power supply. If no earth leakage breaker is installed, it may cause an electric shock.

•Do not use anything other than breaker and fuse with correct capacity. Using fuse and wire or copper wire with too large capacity may cause a malfunction of unit or fire.

11. Test run

11.1. The following phenomena do not represent trouble (emergency)

Phenomenon	Display of remote controller	Cause
Indoor unit does not perform cooling (heat-	“Cooling (heating)” flashes	When another indoor unit is performing the heating (cooling) operation,
ing) operation.		the cooling (heating) operation is not performed.
The auto vane runs freely.	Normal display	Because of the control operation of auto vane, it may change over to horizontal
		blow automatically from the downward blow in cooling in case the downward
		blow operation has been continued for 1 hour. At defrosting in heating, hot adjust-
		ing and thermostat OFF, it automatically changes over to horizontal blow.
Fan setting changes during heating.	Normal display	Ultra-low speed operation is commenced at thermostat OFF.
		Light air automatically changes over to set value by time or piping temperature at
		thermostat ON.
Fan stops during heating operation.	Defrost display	The fan is to stop during defrosting.
Fan does not stop while operation has been	No lighting	Fan is to run for 1 minute after stopping to exhaust residual heat (only in heating).
stopped.
No setting of fan while start SW has been	Heat ready	Ultra low-speed operation for 5 minutes after SW ON or until piping temperature
turned on.		becomes 35 °C [95 °F], low speed operation for 2 minutes thereafter, and then
		set notch is commenced. (Hot adjust control)
Indoor unit remote controller shows “HO” or	“HO” or “PLEASE WAIT” flashes	System is being driven.
“PLEASE WAIT” indicator for about five min-		Operate remote controller again after “HO” or “PLEASE WAIT” disappear.
utes when turning ON universal power sup-
ply.
Drain pump does not stop while unit has been	Light out	After a stop of cooling operation, unit continues to operate drain pump for three
stopped.		minutes and then stops it.
Drain pump continues to operate while unit		Unit continues to operate drain pump if drainage is generated, even during a
has been stopped.		stop.

12. Information on rating plate

Model	P72	P96
Refrigerant (R410A)	7.0 kg [15 LBS 7 oz]	8.0 kg [17 LBS 11 oz]
Allowable pressure (Ps)	HP: 4.15 MPa [601 psi], LP: 2.21 MPa [320 psi]
Net weight	266 kg [588 LBS]	269 kg [594 LBS]

MANUFACTURER: MITSUBISHI ELECTRIC CORPORATION AIR-CONDITIONING & REFRIGERATION SYSTEMS

WORKS 5-66, TEBIRA, 6-CHOME, WAKAYAMA CITY, JAPAN

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