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Instructions
Danfoss reciprocating compressors
MT / MTZ / NTZ / VTZ
1" :
80 Nm
1"1/4 : 90 Nm
1"3/4 : 110 Nm
A
B
C
A: Model number
B: Serial number
C: Certification logo: Contact Danfoss
MT
Refrigerant
R22
R417A* R407A**
Oil
160PZ-
160P
175PZ*
High side
10.9 -
9.32 -
bar (g)
pressure range
27.7
25.5
Low side
1.01 -
0.54 -
bar (g)
pressure range
6.89
5.66
* When MT compressors are used with R417A, the factory charged mineral oil 160P must be replaced by polyolester oil 160PZ-175PZ.
** R407A and R407F are not used for China Market.
Installation and servicing of the compressor by qualified personnel only. Follow these instructions and sound refrigeration engineering practice relating to
installation, commissioning, maintenance and service.
The compressor must only be used for its
designed purpose(s) and within its scope of
application (refer to «operating limits»).
Consult Application guidelines and data-
sheet available from cc.danfoss.com
2 | © Danfoss | DCS (CC) | 2018.03
15 Nm
HM8-40
D: Supply voltage, Starting current & Maximum current
E: Housing service pressure
F: Factory charged lubricant
R407C
R407F**
R134a
175PZ-160PZ
11.6 -
12.5 -
12.1 -
7.87 -
25.8
29.4
24.0
22.6
0.53 -
1.43 -
0.99 -
0.06 -
5.94
6.55
6.25
4.72
Discharge temperature must be kept lower than 130°C
The compressor is delivered under
nitrogen gas pressure (between 0.3
and 0.7 bar) and hence cannot be
connected as is; refer to the «assembly»
section for further details.
15 Nm
HM12-50
D
E
F
MTZ
R404A /
R452A
R448A
R449A
R507
175PZ
13.2 -
12.5 -
11.7 -
11.7 -
27.7
27.3
26.0
25.9
1.04 -
0.84 -
0.6 -
0.6 -
7.2
6.69
6.08
6.07
Under all circumstances, the
EN378 (or other applicable local safety
regulation) requirements must be
fulfilled.
C
R
S
Never
operate
compressors
terminal cover fitted
230 V
TH
RC
230 V
SR
TH
5
2
RC
1
SC
IOL
TH : Thermostat
SR : Start Relay
SC : Start Capacitor
RC : Run Capacitor
IOL : Motor Protector
VTZ
R404A/
R513A
R407C
R134a
R507
160PZ
8.37 -
7.8 -
7.87 -
9.89 -
23.36
29.4
20.2
27.7
0.21 -
1.43 -
0.64 -
1.04 -
5.12
6.55
3.88
6.06
The compressor must be handled
with caution in the vertical position
(maximum offset from the vertical :
15°)
8510196P04H - FRCC.PI.049.A4.02
C
S
R
without
~
1
PSC
C
IOL
S
R
~
1
CSR
C
IOL
S
R
NTZ
R404A/
R452A
R507
175PZ-
175PZ
160Z/MPZ
12.5 -
13.2 -
24.2
27.7
0.18 -
0.05 -
2.99
3.34
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