Danfoss MLZ Series Instructions

Instructions
MLZ/MLM compressors
Operating limits
MLZ - R407A
65
60
55
50
SH 10K
45
RGT 20°C
40
35
MLZ076
30
25
20
15
10
-30 -25 -20 -15 -10 -5
Evap. temp. (°C)
MLZ - R407F
65
60
55
50
SH 10K
45
RGT 20°C
40
35
30
MLZ076
25
20
15
10
-30 -25 -20 -15 -10 -5
Evap. temp. (°C)
MLZ - R404A / R507
65
60
SH 10K
55
50
RGT: 20°C
45
40
35
30
25
20
15
10
5
-35 -30 -25 -20 -15 -10 -5
Evap. Temp. (°C)
Electrical connections
Quick connect spade terminals
Quick connect spade terminals
T and P terminal box type
P terminal box type
FRCC.PI.014.A4.02 - December 2014
A
B
C
D
75
70
65
60
55
50
45
40
35
30
25
20
15
-20 -15 -10 -5
0 5 10 15
70
65
60
55
50
45
40
35
30
25
20
15
10
-35 -30 -25 -20 -15 -10 -5
0 5 10 15
When MLM compressors are used with R417A,
the factory charged oil must be replaced by PVE
oil 320HV (120Z5034).
The compressor must only be
used for its designed purpose(s)
and within its scope of applica-
tion (refer to «operating limits»).
Consult
0 5 10 15
and
cc.danfoss.com
The compressor is delivered under nitrogen gas pres-
sure (between 0.3 and 0.4 bar / 4 and 6 psi). Do not di-
sassemble bolts, plugs, fittings, etc... unless all pressure
has been relieved from the compressor.
Ring connect screw terminals
Q and C terminal box type
Group 2
MLZ - R134a
SH: 11K
0 5 10 15
Evap. Temp. (°C)
MLZ / MLM - R22 / R417A
SH: 11K
RGT: 25°C
0 5 10 15
Evap. Temp. (°C)
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.
Application guidelines
datasheet available from
C
T₁
S
T₂
R
T₃
Ring connect screw terminals
C terminal box type
A: Model number
B: Technical number
C: Serial Number
E
D: Internal protection
F
E: Supply voltage range
G
F: Run capacitor
H
G: Locked rotor current
I
Maximum operating current
H: Lubricant type and nominal charge
I: Approved Refrigerant
J
J: Manufacturing year
Single phase
N L₁
Thermostat
Run capacitor
N L₁
20
Thermostat
Run capacitor
Start capacitor
Brazed
Models
connection size
MLZ/MLM Suction 3/4"
015-026 Discharge 1/2"
MLZ/MLM Suction 7/8"
030-045 Discharge 1/2"
MLZ/MLM Suction 7/8"
048 Discharge 3/4"
MLZ/MLM Suction 1"1/8
058-076 Discharge 7/8"
Never operate Under all circumstances, the EN378
compressor wit- (or other applicable local safety regu-
hout terminal box lation) requirements must be fulfilled.
cover in place and Wear protective goggles and work
secured. gloves.
The compressor must be handled with
caution in the vertical position (maxi-
mum offset from the vertical : 15°).
push
push
© Copyright Danfoss | Commercial Compressors | 2014.12
PSC wiring
C
IOL
S R
CSR wiring
Start Relay
C
5
2
S R
1
15 kΩ -1 w
Rotolock
connection size
Suction 1"1/4
Discharge 1"
Suct. 1"1/4
Discharge 1"
Suction 1"1/4
Discharge 1" 1/4
Suction 1"3/4
Discharge 1"1/4
push