Haier AU42NALEAA Service Manual - Page 125

>a__WcU[S^ a`V[e[a`Wc Charging amount of refrigerant When the total length (L) of the two indoor units' connecting pipe is less than 5m, it is unnecessary to charge additional refrigerant. If the connecting pipe (L) exceeds 5m, it shall charge Mg additional refrigerant per meter. That is: Refrigerant charging amount = (L-5) x M (g) For the unit with liquid pipe 6.35mm, M=30 For the unit with liquid pipe 9.52mm, M=50 - Only in COOLING operation can charge the additional refrigerant. When charging, the refrigerant shall be charged from the charging nozzle of low pressure vavle. Be carefull when charging refrigerant, do not let the air mix into the system,and must charge the additional refrigerant in liquid condition. Electric wiring WARNING DANGER OF BODILY INJURY OR DEATH TURN OFF ELECTRIC POWER AT CIRCUIT BREAKER OR POWER SOURCE BEFORE MAKING ANY ELECTRIC CONNECTIONS.GROUND CONNECTIONS MUST BE COMPLETED BEFORE MAKING LINE VOLTAGE CONNECTIONS. (1) Selection of size of power supply and interconnecting Precautions for Electric wiring Electric wiring work should be conducted only by authorized personnel. Do not connect more than three wires to the terminal block. Always use round type crimped terminal lugs with insulated grip on the ends of the wires. Use copper conductor only. Select wire sizes and circuit protection from table below. (This table shows 20 m length wires with less than 2% voltage drop.) DdW^ >[bUe[d TbWS\Wb H`VW] KZScW Mg[dUZ TbWS\Wb JfWbUebbW_d +