Toshiba MMY-MAP1004HT8ZG-E, MMY-MAP1604HT8ZG-E „ Adding refrigerant, Charging of refrigerant

SMMS-i Installation Manual

„Adding refrigerant

After finishing vacuuming, exchange the vacuum pump with a refrigerant canister and start additional charging of refrigerant.

Calculation of additional refrigerant charge amount

Refrigerant charge amount at shipment from the factory does not include the refrigerant for pipes at the local site. For refrigerant to be charged in pipes at the local site, calculate the amount and charge it additionally.

NOTE

If the additional refrigerant amount indicates minus as the result of calculation, use the air conditioner without additional refrigerant.

Heat pump		Outdoor unit type			MAP080		MAP100	MAP120	MAP140	MAP160
type	Charging amount (kg)							11.5
Cooling only		Outdoor unit type			MAP080		MAP100	MAP120	MAP140	MAP160
type	Charging amount (kg)				10.5		10.5	10.5	11.5	11.5
Additional refrigerant charge						Additional refrigerant charge			Corrective amount of refrigerant
									depending on HP of co-
			= Real length of liquid pipe ×				amount per 1m liquid pipe +
amount at local site									operating outdoor units
							(Table 1)		(Table 2)
Table 1
Liquid pipe dia. (mm)				6.4	9.5		12.7	15.9	19.1	22.2
Additional refrigerant amount/1m liquid				0.025	0.055		0.105	0.160	0.250	0.350
pipe (kg/m)

SMMS-i							Installation Manual
Table 2
	Combined HP (HP)		Combined outdoor units (HP)				C (Corrective amount
							of refrigerant) (kg)
	8	8HP		–	–	–	1.5
	10	10HP		–	–	–	2.5
	12	12HP		–	–	–	3.5
	14	14HP		–	–	–	8.5
	16	16HP		–	–	–	10.5
	18	10HP		8HP	–	–	0.0
	20	10HP		10HP	–	–	3.0
	22	12HP		10HP	–	–	5.0
	24	12HP		12HP	–	–	7.5
	26	16HP		10HP	–	–	8.5
Standard type
	28	16HP		12HP	–	–	9.5
	30	16HP		14HP	–	–	11.5
	32	16HP		16HP	–	–	12.5
	34	12HP		12HP	10HP	–	3.0
	36	12HP		12HP	12HP	–	4.0
	38	16HP		12HP	10HP	–	6.0
	40	16HP		12HP	12HP	–	7.0
	42	16HP		14HP	12HP	–	8.0
	44	16HP		16HP	12HP	–	10.0
	46	16HP		16HP	14HP	–	12.0
	48	16HP		16HP	16HP	–	14.0
	16	8HP		8HP	–	–	0.0
	24	8HP		8HP	8HP	–	-4.0
	26	10HP		8HP	8HP	–	-4.0
	28	10HP		10HP	8HP	–	-2.0
	30	10HP		10HP	10HP	–	0.0
	32	8HP		8HP	8HP	8HP	-6.0
High Efficiency type	34	10HP		8HP	8HP	8HP	-6.0
	36	10HP		10HP	8HP	8HP	-6.0
	38	10HP		10HP	10HP	8HP	-6.0
	40	10HP		10HP	10HP	10HP	-5.0
	42	12HP		10HP	10HP	10HP	-4.0
	44	12HP		12HP	10HP	10HP	-2.0
	46	12HP		12HP	12HP	10HP	0.0
	48	12HP		12HP	12HP	12HP	2.0

Charging of refrigerant

•Keeping the valve of the outdoor unit closed, be sure to charge the liquid refrigerant into the service port at the liquid side.

•If the specified amount of refrigerant cannot be charged, fully open the valves of the outdoor unit at liquid and gas sides, operate the air conditioner in COOL mode, and then charge refrigerant into service port at the gas side. In this time, choke the refrigerant slightly by operating the valve of the canister to charge liquid refrigerant.

•The liquid refrigerant may be charged suddenly, therefore be sure to charge refrigerant gradually.

EN

31-EN – 16 – 32-EN