Mfi series operation: performance – Ice-O-Matic MFI User Manual
Page 21
MFI Series
Operation: Performance
Page
15
Beginning at the compressor, the refrigerant is compressed into a high temperature gas. The discharge line
directs this gas to the condenser. At the condenser (air or water cooled) the gas is cooled by either air or
water and then it condenses into a liquid.
This high pressure liquid then goes through the liquid line to the expansion valve. The thermostatic expansion
valve meters liquid refrigerant into the evaporator, the volume of liquid refrigerant depending upon the
temperature of the evaporator.
At the evaporator, the refrigerant enters an area of relatively low pressure, where it can easily “boil off” or
evaporate. As it evaporates, it absorbs heat from the evaporator and whatever is in contact with it (such as
water inside it). After the evaporator, the refrigerant, now a low pressure vapor, goes through the suction line
back to the compressor, where the cycle is repeated.
Typical Low Side Pressure:
Air
Cooled:
34-38
PSIG
Typical Discharge Pressure:
Air
Cooled:
220-275
PSIG
Typical Compressor Amp Draw:
MFI0500AS
115/60/1
8-9
Amps
MFI0500WS
115/60/1
8-9
Amps
MFI0800AS
115/60/1
8-9
Amps
MFI0806AS
208-230/60/1
5-6
Amps
MFI0806WS
208-230/60/1
5-6
Amps
MFI0805AS
230/50/1
5-6
Amps
MFI1256AS
208-230/60/1
5-6
Amps
MFI1255AS
230/50/1
5-6
Amps
Typical Auger Drive Motor Amp Draw:
MFI0500AS
115/60/1
4.0
to
4.5
Amps
MFI0500WAS 115/60/1
4.0 to 4.5 Amps
MFI0800AS
115/60/1
4.0
to
4.5
Amps
MFI0806AS
208-230/60/1
1.6
to
3.8
Amps
MFI0806WS 208-230/60/1
1.6 to 3.8 Amps
MFI0805AS
230/50/1
1.6
to
3.8
Amps
MFI1256AS
208-230/60/1
1.6
to
3.8
Amps
MFI1255AS
230/50/1
1.6
to
3.8
Amps
Expansion Valve Superheat:
6-8 degrees
High Pressure Cut Out- Automatic Reset:
450 PSIG
Low Pressure Cut Out- Automatic Reset:
15 PSIG
Refrigerant Charge: R404A
MFI0500
Air
Cooled
22
Ounces
MFI0500
Water
Cooled
18
Ounces
MFI0800
Air
Cooled
24
Ounces
MFI0806
Air
Cooled
24
Ounces
MFI0806
Water
Cooled
20
Ounces
MFI0805
Air
Cooled
24
Ounces
MFI1256
Air
Cooled
36
Ounces
MFI1255
Air
Cooled
36
Ounces