Sight Glass/Oil Level Switch; Schrader; Oil Equalization Connection; Suction & Discharge Connections - Danfoss VZH028 Application Manuallines

Application Guidelines
Sight glass/oil level
switch

Schrader

Oil equalization
connection
Suction & discharge
connections
Compressor models
VZH028-044
Frequency converter
dimensions
Drive power
Drive supply voltage
kW
T2: 200-240/3/50-60 7.5
10
T4: 380-480/3/50-60 7.5
10
Dimensions
VZH compressors single versions come equipped
with a threaded oil sight glass with 1"1/8 – 18
UNEF connection. It can be used for a visual
check of oil amount and condition.
The oil fill connection and gauge port is a 1/4"
male flare connector incorporating a schrader
valve.
VZH manifolding compressors are equipped
with a rotolock oil equalization connection.
This connection is used when compressors are
mounted in parallel. Contact Danfoss for further
details and refer to the hybrid manifolding
specific section.
VZH compressors are all delivered with suction
and discharge brazed connections only. They are
copper-plated steel connections.
Rotolock adaptors are available, refer to the
"Accessories" section.
Brazed connection size
Suction 3/4"
Discharge 1/2"
Frequency converter dimensions depend
on supply voltage, IP rating and power. The
table below gives an overview of the overall
dimensions and different drive enclosures (H3 -
H5). Details for each drive enclosure are on the
following pages.
Compressor Compressor
voltage code model
6 VZH028
J VZH035
VZH044
6 VZH028
G VZH035
VZH044
VZH manifold version compressors come
equipped with a screw-in optical part on oil level
switch port located below the electrical box.
VZH028-035-044
VZH028-035-044
   
Rotolock adaptor set
(adaptor, gasket, sleeve, nut)
Rotolock Solder sleeve ODF
1-1/4" 3/4"
1" 1/2"
Overall drive size
Drive enclosure
(H x W x L) mm
H4 296x135x241
H4 296x135x241
H5 334x150x255
H3 255x100x206
H3 255x100x206
H4 296x135x241
Single compressors
Oil equalization
Rotolock 1"1/8
Suction Discharge
3/4"

Rotolock adaptor
( adaptor only)
Code Number Code Number
120Z0366
120Z0126
120Z0365
Min 100
Clearance above for cooling
L
H
W
Min 100
Clearance above for cooling
IP20
Overall drive size
Clearance above/
(H x W x L) mm
incl. decoupling
(mm/inch)
plate
359x135x241
359x135x241
402x150x255
329x100x206
329x100x206
359x135x241
FRCC.PC.034.A2.02
1/2"
below
100/4
100/4
100/4
100/4
100/4
100/4
15