Danfoss MLZ Series Instructions

Instructions
Danfoss scroll compressors
MLZ
Operating limits
MLZ - R407A
75
70
65
60
55
50 SH 10K
45
RGT 20°C
40
35
MLZ076
30
25
20
15
10
5
-35 -30 -25 -20 -15 -10 -5 0 5 10
Evap. temp. (°C)
MLZ - R404A/R507
75
70
65
60
55
SH 10K
50
45
RGT 20°C
40
35
30
25
20
15
10
5
-35 -30 -25 -20 -15 -10 -5 0 5 10
Evap. temp. (°C)
Single phase
N L
Thermostat
Run capacitor
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
datasheet available from
cc.danfoss.com
The compressor is delivered under nitrogen gas pressure (between 0.3 and 0.4 bar / 4 and 6 psi).
Do not disassemble bolts, plugs, fittings, etc... unless all pressure has been relieved from the compressor.
Electrical connections
Quick connect spade terminals
Quick connect spade terminals
P terminal box type
T and P terminal box type
© Danfoss | DCS (CC) | 2018.06
A
B
C
D
E
MLZ - R134a
75
70
65
60
55
SH 11K
50
45
40
35
30
25
20
15
10
5
15 20 -35 -30 -25 -20 -15 -10 -5 0
Evap. temp. (°C)
MLZ - R22
75
70
65
60
55
50
SH 10K
45
40
RGT 20°C
35
30
25
20
15
10
5
15 20 -35 -30 -25 -20 -15 -10 -5 0
Evap. temp. (°C)
N L
PSC wiring
C
Thermostat
IOL
Run capacitor
S
R
Never operate compressor without terminal box
cover in place and secured.
T₃
Ring connect screw terminals
Q and C terminal box type
MLZ - R407F
75
70
65
60
55
50
SH 10K
45
40
35
MLZ076
30
25
20
15
10
5
5 10 15 20 -35 -30 -25 -20 -15 -10
Evap. temp. (°C)
MLZ - R452A
75
70
65
60
55
50 SH 10K
45
40
RGT 20°C
35
30
25
20
15
10
5
5 10 15 20 -35 -30 -25 -20 -15 -10
Evap. temp. (°C)
CSR wiring
Start Relay
C
5
2
S R
1
Start capacitor 15 kΩ -1 w
C
T₁
S
T₂
R
Ring connect screw terminals
C terminal box type
A: Model number
B: Serial Number
C: Technical number
D: Internal protection
F
G
E: Manufacturing year
F: Supply voltage range
H
G: Locked rotor current
I
Maximum operating current
H: Lubricant type and nominal charge
I: Approved Refrigerant
MLZ - R448A/R449A
75
70
65
60
55
50
SH 10K
45
40
RGT 20°C
35
30
25
20
15
10
5
-5 0 5 10 15 20 -35 -30 -25 -20
MLZ - R513A
75
70
65
60
55
50
45
40
35
30
25
20
15
10
5
-5 0 5 10 15 20 -35 -30 -25 -20
Brazed
Models
connection size
MLZ Suction 3/4"
015-026 Discharge 1/2"
MLZ Suction 7/8"
030-045 Discharge 1/2"
MLZ Suction 7/8"
048 Discharge 3/4"
MLZ Suction 1"1/8
058-076 Discharge 7/8"
Under all circumstances, the EN378 (or other
applicable local safety regulation) requirements must
be fulfilled.
Wear protective goggles and work gloves.
The compressor must be handled with caution in the
vertical position (maximum offset from the vertical : 15°).
push
push
8510284P01C - FRCC.PI.048.A3.02 | 1
RGT 20°C
-15 -10 -5 0 5 10 15 20
Evap. temp. (°C)
SH 10K
RGT 20°C
-15 -10 -5 0 5 10 15 20
Evap. temp. (°C)
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