| Approval standard |
CE certified
UL certified when connected to frequency converter |
| Brand technique |
Reciprocating compressor |
| Capacity control |
Inverter |
| Colour |
Blue |
| Compressor power supply [V/Ph/Hz] |
380-480/3/50-60 |
| Configuration code |
Single |
| Connection type |
Rotolock |
| Cylinder |
2 |
| Description |
VTZ121-G |
| Diameter [mm] |
288 mm |
| Discharge connection height [mm] |
74 mm |
| Discharge connection mounting torque [Nm] |
90 N-m |
| Discharge connection pipe size [in] |
3/4 in |
| Discharge connection rotolock size [in] |
1 1/4 in |
| Discharge connection size [in] |
1 1/4 in |
| Discharge connection sleeve pipe size [in] |
3/4 in |
| Drawing number |
8502016a |
| Economizer |
No |
| Factory HP [bar] |
25 bar |
| Factory LP [bar] |
25 bar |
| Fitting remark |
(shipped with rotolock version only) |
| Fitting sleeve |
ODF |
| Fitting standard |
Rotolock |
| Frequency [Hz] |
30 – 85 |
| Gauge port HP |
None |
| Gauge port LP |
Schrader |
| Generation code |
A |
| Glass mounting |
Threaded |
| Glass torque [Nm] |
50 N-m |
| GP LP torque [Nm] |
15 N-m |
| High side max pressure (Ps) |
29.4 bar |
| High Side TS Max |
150 °C |
| High Side TS Min |
-35 °C |
| High Side Volume |
0.6 L |
| High value of nominal voltage at 50Hz [V] |
480 V |
| High value of nominal voltage at 60Hz [V] |
480 V |
| High value of voltage range at 50Hz [V] |
480 V |
| High value of voltage range at 60Hz [V] |
480 V |
| IP protection class |
IP54 (with cable gland) |
| Low side max pressure (Ps) |
22.6 bar |
| Low Side TS Max |
50 °C |
| Low Side TS Min |
-35 °C |
| Low Side Volume |
16.5 L |
| Low value of nominal voltage at 50Hz [V] |
380 V |
| Low value of nominal voltage at 60Hz [V] |
380 V |
| Low value of voltage range at 50Hz [V] |
380 V |
| Low value of voltage range at 60Hz [V] |
380 V |
| LRA |
139 A |
| MMT |
29 A |
| Model number |
VTZ121AGNR1B |
| Motor protection |
Motor protection by frequency converter |
| Mounting torque [Nm] |
15 N-m |
| Nominal cooling capacity at 50Hz |
6.7 kW |
| Nominal cooling capacity at 60Hz |
14.4 kW |
| Number of starts per hour [Max] |
12 |
| Oil charge [L] |
1.8 L |
| Oil equalization |
3/8” flare SAE |
| Oil equalization torque [Nm] |
30 N-m |
| Oil reference |
160PZ |
| Packaging height [mm] |
455 mm |
| Packaging length [mm] |
395 mm |
| Packaging width [mm] |
365 mm |
| Packing format |
Single pack |
| Packing quantity |
1 |
| Phase |
3 |
| Power connections |
Screw 4.8 mm |
| Refrigerant |
R134a
R404A
R407C
R507A |
| Refrigerant charge [kg] [Max] |
5 kg |
| Relief valve |
30 bar/8 bar |
| RLA |
23.2 A |
| Rotational speed at 50Hz [rpm] |
0 rpm |
| Rotational speed at 60Hz [rpm] |
0 rpm |
| Segment usage |
Air conditioning
Refrigeration LT
Refrigeration MT |
| Shipped fittings |
Suction and discharge solder sleeves, rotolock nuts and gaskets |
| Shipped instructions |
Installation instructions |
| Shipped mounting |
Mounting kit with grommets, bolts, nuts, sleeves and washers |
| Shipped oil |
Initial oil charge |
| Suction connection height [mm] |
165 mm |
| Suction connection mounting torque [Nm] |
110 N-m |
| Suction connection pipe size [in] |
1 1/8 in |
| Suction connection rotolock size [in] |
1 3/4 in |
| Suction connection size [in] |
1 3/4 in |
| Suction connection sleeve pipe size [in] |
1 1/8 in |
| Swept volume [cm3] |
120.94 cm3 |
| Technology |
Reciprocating |
| Test dif [bar] [Max] |
30 bar |
| Test HP [bar] [Max] |
30 bar |
| Test LP [bar] [Max] |
25 bar |
| Torque earth [Nm] |
3 N-m |
| Torque power [Nm] |
3 N-m |
| Total height [mm] |
413 mm |
| Type |
VTZ |
| Type designation |
Compressor |
| Viscosity [cP] |
32 cP |
| Winding resistance for three-phase compressors with identical windings [Ohm] |
0.59 Ohm |