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Danfoss
Water Pump
APP series
Danfoss APP series User Manual
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© Danfoss | DCS-SGDPT/SI | 2023.03
118 | 180R9346 | AQ240486503020en-001702
O
p
e
r
a
t
i
on
g
uide
I
n
st
a
l
l
a
t
i
on
,
O
p
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r
a
t
i
on
a
nd
M
a
in
t
e
na
nc
e
A
P
P
5
3
-
9
2
p
u
m
p
s
T
r
ouble sho
oting
Closed water systems
The sy
stem
does not work
.
Is there sucient water
in the tank?
No
Ye
s
No
No
No
Ye
s
Ye
s
Ye
s
Ye
s
.
Is the water in the tank
very hot? Ie above 50
o
.
Is the power supply ok?
.
Are control lights on?
.
Is the lter clogged?
.
Is the lter control
light on?
.
Replace lter
element
Contact ser
viceman
Stamp
.
Fill wat
er into the system
.
T
race leakage, if any
.
A blown fuse/or short
circuit?
.
Check power supply
and fuses and contact
electrician
.
At temperatures
higher than 50
o
the
pump drive cuts out.
Consequently the
cooler must be
checked/cleaned
.
Is the electric motor
of the pump unit
rotating?
No
117
Table of Contents
Section 1
3
Table of Contents
3
General Safety Information
13
What to Listen and Look for
13
Maintenance and Service of the Pump Unit
13
Service and Inspection Interval for the Pump
13
Shut down of the System
13
Operation of Pump Unit
13
Getting the Pump Unit Back into Operation
14
Storage of the Pump
14
Procedure for Mounting the Pump Onto the Electric Motor
14
Assembling the Pump Unit
14
Disassembling and Assembling the Pump Unit
14
Troubleshooting and Scrapping Criteria
15
General Safety Information
15
Operational Conditions Which Can Cause Pump Failures
15
Mechanical Failure
15
Electrical Failure
15
Responsibility
15
Scrapping Criteria
15
Section 2
20
Application Examples
21
Benefits
21
App 53-92
22
Technical Data
22
APP 53 Flow at Different Rpm
24
Performance Curves
24
APP 65 Flow at Different Rpm
25
APP 78 Flow at Different Rpm
26
APP 86 Flow at Different Rpm
27
APP 92 Flow at Different Rpm
28
APP 53-92 Integrated Flushing Valve
29
Calculation Factor at 60 Barg / 870 Psig for APP 53-92
29
Flushing Valve Curves
29
Motor Requirements
29
Installation
30
Operation
30
Temperature and Corrosion
30
Filtration
31
System with Direct Supply
31
App 53
33
Dimensions and Connections
33
App 65 - 92
34
APP 53-92 with IE3 Motor, IEC 315M - 4
36
APP 53-92 with IE3 Motor, IEC 315S - 4
36
APP 53-92 with IE3 Motor, IEC 315L 1-4
37
APP 53-92 with IE3 Motor, IEC 315L 2 - 4
37
App 53 - 92
38
Pump Connections
38
Technical Data
39
VCM 3" Victaulic
39
Flow Versus Pressure
40
Accessories
41
Service and Warranty
41
Section 3
44
Identification
44
Open-Ended Systems with Direct Water Supply
45
Preferred RO System Design Without ERD
45
System Design
45
Alignment between the Motor and Pump Shaft
46
Assembly of the Coupling
46
Building up the Pump Unit with Bowex Coupling
46
Preferred RO System Design with ERD
46
Preferred RO System Design with Pumps and Erds in Parallel
46
Reversible Pumps
46
Overall Assembly with Coupling Bowex-ELASTIC®, Type HEW Compact
47
Mounting
48
Building up the Pump Unit with Jaw Coupling
49
Direction of Rotation
49
Mounting
49
Orientation
49
Protection from too High Pressures
49
Connections
50
Initial Start-Up
51
Disconnection
52
Dry Running
52
Operation
52
Pressure
52
Temperature
52
Service and Warranty
53
Storage
53
Electric Motors (180R9230)
55
Section 4
90
Validity
91
Parts List APP 53-92 - Serial No. 07 or Higher
92
Exploded View APP 53-92 Serial No. 07 or Higher
94
Parts List APP 53-86 - Serial No. up to 06
95
Exploded View APP 53-86 - Serial No. up to 06
97
Section 5
102
Trouble Shooting Fish Bone Chart
103
No Flow/No Pressure
104
Reduced Flow/Reduced Pressure
105
High Torque on Electric Motor
106
Noise from Pump
107
Noise from Installation
108
Typical Signs of Wear
109
Valve Plate
109
Port Plate
110
Swash Plate
110
Other manuals for Danfoss APP series
User Manual
76 pages
Instruction
10 pages
Service Guide
12 pages
4
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Danfoss APP series Specifications
General
Brand
Danfoss
Model
APP series
Category
Water Pump
Language
English
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