.
Compressor Unit
VZ.VZL
　
●Technical Data
VZ・VZL Reciprocating Compressor Technical Data
■Single Stage Compressor : Refrigerant, R 717（Ammonia）

Refrigeration Capacity calculated by; Condensing Temp.= +40℃, Evaporating Temp. = -15℃, Liquid Sub-Cooling Temp.= 5℃, Suction Gas Super Heating Temp. = 0℃（1kW=860Kcal/hr）
Compressor Unit Model
HVU-VZ6AMT
HVU-VZ8AMT
HVU-VZL4AMT
HVU-VZL8AMT
Compressor Model
VZ 6
VZ 8
VZL 4
VZL 8
Number of Cylinder
6
8
4
8
Bore (mm)
132
132
132
132
Stroke (mm)
106
106
132

132
Revolution (min/max)
(rpm)
980/1170
980/1170
980/1170
980/1170
Displacement
(
m 3
/hr)
511.77/
610.99
682.36/
814.65
424.86/
507.24
849.73/
1014.47
Refrigeration Capacity
(kW)
216.98/
259.07
289.30/
345.35
180.13/
215.05
360.25/
430.10
Piping Connections (mm)-
Low
114.3
114.3
114.3
114.3
High
76.3
89.1
76.3
89.1
Initial Oil Charge
（L）
30
32
26
32

■Single Stage Compressor : Refrigerant, R 22（HCFC22）

Refrigeration Capacity calculated by; Condensing Temp. = +40℃, Evaporating Temp. = -15℃, Liquid Sub-cooling Temp. = 5℃, Suction Gas Super Heating Temp. = 0℃（1kW=860Kcal/hr）
Compressor Unit Model
HVU-VZ6AMT
HVU-VZ8AMT
HVU-VZL4AMT
HVU-VZL8AMT
Compressor Model
VZ 6
VZ 8
VZL 4
VZL 8
Number of Cylinder
6
8
4
8
Bore (mm)
132
132
132
132
Stroke (mm)
106
106
132

132
Revolution (min/max)
(rpm)
980/1170
980/1170
980/1170
980/1170
Displacement
(
m 3
/hr)
511.77/
610.99
682.36/
814.65
424.86/
507.24
849.73/
1014.47
Refrigeration Capacity
(kW)
205.82 /
245.72
274.43 /
327.63
170.87 /
204.00
341.74 /
408.00
Piping Connections (mm)-
Low
114.3
114.3
89.1
114.3
High
76.3
89.1
76.3
89.1
Initial Oil Charge
（L）
30
32
26
32
（Specifications are subject to be changed without notifying.）
■Two-Stage Compressor : Refrigerant, R 717（Ammonia）

Refrigeration Capacity calculated by; Condensing Temp. = +40℃, Evaporating Temp. = -35℃, Liquid Sub-Cooling Temp. = 5℃, Suction Gas Super Heating = 0℃（1kW=860Kcal/hr）
Compressor Unit Model
HVU-VZ42AMT
HVU-VZ62AMT
HVU-VZL31AMT
HVU-VZL62AMT
Compressor Model
VZ 42
VZ 62
VZL 31
VZL 62
Number of Cylinder
4+2
6+2
3+1
6+2
Bore (mm)
132
132
132
132
Stroke (mm)
106
106
132

132
Revolution (min/max)
(rpm)
980/1170
980/1170
980/1170
980/1170
Displacement
(
m 3
/hr)
197.88 /
236.25
211.53 /
252.54
131.71 /
158.59
263.42 /
314.49
Refrigeration Capacity
(kW)
79.53 /
94.88
110.70 /
132.21
68.95 /
83.02
137.91 /
164.65
Piping Connections (mm)-
Low
89.1
114.3
89.1
114.3
Middle
60.5,60.5
76.3,76.3
60.5,60.5
76.3,76.3
High
48.6
60.5
48.6
60.5
Initial Oil Charge
（L）
30
32
26
32

■Two-Stage Compressor ：Refrigerant, R 22（HCFC22）
Refrigeration Capacity calculated by; Condensing Temp.= +40℃, Evaporating Temp.= -35℃, Liquid Sub-cooling Temp. = 5℃, Suction Gas Super Heating Temp. = 0℃ (1kW=860Kcal/hr)
Compressor Unit Model
HVU-VZ42RMT
HVU-VZ62RMT
HVU-VZL31RMT
HVU-VZL62RMT
Compressor Model
VZ 42
VZ 62
VZL 31
VZL 62
Number of Cylinder
4+2
6+2
3+1
6+2
Bore (mm)
VZ 42
VZ 62
VZL 31
VZL 62
Stroke (mm)
980/1170
980/1170
980/1170
980/1170
Revolution (min/max)
(rpm)
55 / 75
75 / 90
45 / 60
90 / 110
Displacement
(
m 3
/hr)
197.88 /
236.25
211.53 /
252.54
131.71 /
157.24
263.42 /
314.49
Refrigeration Capacity
(kW)
87.09 /
103.95
117.44 /
140.23
73.14 /
87.32
146.28 /
174.65
Piping Connections (mm)-
Low
89.1
114.3
89.1
114.3
Middle
60.5,60.5
76.3,76.3
60.5,60.5
76.3,76.3
High
48.6
60.5
48.6
60.5
Initial Oil Charge
（L）
30
32
26
32
（Specifications are subject to be changed without notifying.）
■ Standard Accessories：Oil Cooler, Gauge Board, Solenoid Valve for start-up capacity control, Crank Case Heater (HCFC22), Thermometers.

■ Optional Accessories：Vibration Proof Items (Pads & Flexible Tubes).