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TECHNICAL CHANGES
1
The following are in common details.
1. Refrigerant type has changed from R-22(HCFC) to R-407C(HFC).
2. Rated voltage has changed from 220-240V to 220-230V.
3. Compressor has changed from one for R-22 to one for R-407C.
4. Jumper wire JPE for defrosting temperature change in deicer P.C.board is cut at factory shipping.
5. Refrigerant circuit has changed. (Accumulator has been removed.)
MSH-18NV - ➔ MSH-C18SV -
1. It has become impossible that MSH-C18SV- is connected to MXZ series as multi system units.
MUH-07RV - ➔ MUH-C07SV -
1. Path of heat exchanger has changed.
2. Operating Temperature of Defrosting has changed.
Starting of defrost : -3
: or less ➔ 0: or less
Releasing of defrost : 3.1: or more ➔ 10.1: or more
3. Refrigerant oil has changed from MS56 to NEO22.
MUH-09RV - ➔ MUH-C09SV -
1. Path of heat exchanger has changed.
2. Operating Temperature of Defrosting has changed.
Starting of defrost : -3: or less ➔ 4.3: or less
Releasing of defrost : 3.1: or more ➔ 14.7: or more
3. Refrigerant oil has changed from MS56 to NEO22.
MUH-12RV - ➔ MUH-C12SV -
1. Capillary tube has changed. {3.0X{1.8X300➔{3.0X{1.8X250, {3.0X{1.6X700➔{3.0X{1.6X800)
2. Operating temperature of High Pressure Protection has changed.
Outdoor fan motor ON : 48: ➔ 56:
Outdoor fan motor OFF: 52: ➔ 60:
3. Operating temperature of Defrosting has changed.
Starting of defrost : -3: or less ➔ 0: or less
Releasing of defrost : 3.1: or more ➔ 10.1: or more
4. Refrigerant oil has changed from MS56 to NEO22.
MUH-18NV - ➔ MUH-C18SV -
1. Operating temperature of High Pressure Protection has changed.
Outdoor fan motor ON : 56: ➔ 52:
Outdoor fan motor OFF: 60: ➔ 56:
2. Operating temperature of Defrosting has changed.
Starting of defrost : -3: or less ➔ 0: or less
Releasing of defrost : 3.1: or more ➔ 10.1: or more
3. Refrigerant oil has changed from MS32N1 to NEO22.
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OB250-A.qxp 3/9/00 9:48 AM Page 2
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