Danfoss VRJ, Инструкции по применению

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Application Guidelines
6
AB141686422149en-US0401
Technical specifications
Performance data
Variable speed drive
specifications
Bearings lubrication
Compressor
model
Swept
volume
Displacement Oil charge Net weight
cu.in/rev
Min speed 30 Hz 60 Hz Max speed
oz lb
900 rpm 1800 rpm 3600 rpm 4200 rpm
VRJ028 1.64 51 103 206 240 36 53
VRJ035 2.12 66 133 265 310 57 55
VRJ044 2.65 83 166 332 387 57 55
Compressor specifications
For dedicated variable speed drive specifications,
refer to “Danfoss VRJ Installation and Operation
instructions”.
A specific oil pump ensures optimal bearing
lubrication at all compressor speeds. This to have
sufficient bearing lubrication at low speeds as well as avoid excessive Oil Circulation Ratio (OCR) at
high speeds.
Conditions
Compressor
model Nominal
Tons
Compressor speed Compressor capacity
Compressor
isentropic efficiency
rpm Hz Btu/hr Ton
High SEER
conditions
(H)
VRJ028 3 Tons
3600 60 36700 3.06 66.2
4200 70 42700 3.56 64.9
VRJ035 4 Tons
3600 60 46400 3.87 67.6
4200 70 53400 4.45 65.1
VRJ044 5 Tons
3600 60 57800 4.82 68.3
4200 70 68100 5.68 67.0
CHEER
conditions
VRJ028 3 Tons
3600 60 36500 3.04 65.9
4200 70 42300 3.53 64.3
VRJ035 4 Tons
3600 60 46200 3.85 67.3
4200 70 53000 4.42 64.6
VRJ044 5 Tons
3600 60 57900 4.83 68.8
4200 70 68300 5.69 67.5
Heat Pump
conditions
VRJ028 3 Tons
3600 60 25100 2.09 59.7
4200 70 29300 2.44 58.8
VRJ035 4 Tons
3600 60 31800 2.65 61.0
4200 70 36700 3.06 59.0
VRJ044 5 Tons
3600 60 40200 3.35 62.2
4200 70 47300 3.94 61.2
SEER
conditions (I)
VRJ028 3 Tons 1800 30 21000 1.75 68.5
VRJ035 4 Tons 1800 30 26800 2.23 69.7
VRJ044 5 Tons 1800 30 34500 2.88 70.9
Conditions
Evaporating
Temperature
(°F)
Condensing
Temperature
(°F)
Superheat
(°F)
Subcooling
(°F)
High SEER
conditions (H)
50 115 20 15
CHEER
conditions
45 100 20 15
Heat Pump
conditions
30 110 20 15
SEER
conditions (I)
55 100 20 15