Danfoss OP-HJZM, OP-HNXM, OP-HRXM, OP-LNYM, OP-LRYM User guide
...
Manual
Installation and maintenance
condensing unit manual
OP-HJZM / HNXM / HRXM / LNYM / LRYM / LJHM
http://cc.danfoss.com
Manual
0RGHO
6HULDO1XPEHU
&RPSUHVVRU
)DQ0RWRU
'HVLJQ3UHVVXUH
2LO7\SH32(
9)/$$
0&$$
+RXVLQJIRU2XWGRRUXVH
'DQIRVV&RGH
$
%
&
'
(
)
+
,
.
/
*
+-=08:*1
1
R404A/R134a/R507/
R448A/R449A/R452A
Label
Installation & Maintenance
Picture 1 : Minimum
mounting distances
A: Model and bar code
B: Unit code and bar code
C: Serial number and bar code
D: Compressor voltage & Locked rotor amps &
Rated load amps
E: Fan voltage & Full load amps
F: Min. Circuit Ampacity
L M N O
12" 26" 22" 22"
G: Max. Fuse size
H: Design pressure
I: Refrigerant
J: Oil type
K: Outdoor housing
L: Wiring diagram
AIR FLOW
IMPORTANT
2 BC251686497767en-US0801
1 - Installation and maintenance of the
condensing unit must be carried out by qualied
personnel only. Follow these instructions and best
practices on refrigeration engineering during
installation, commissioning, maintenance and
servicing tasks.
2 - The condensing unit must only be used for
its designed purposes and within its scope of
application.
3 - Under all circumstances requirements must be
fullled.
4 - The condensing unit is delivered under
nitrogen gas pressure (14.5psi) and hence
it cannot be connected as it is; refer to the
“Installation” section for further details.
5 - The condensing unit must be handled with
caution in a vertical position (maximum oset
from the vertical: 15°).
Manual
Installation & Maintenance
Introduction
Handling and storage
IMPORTANT
These instructions pertain to OPTYMA™
condensing units (R404A, R507A, R134a, R448A,
R449A, R452A) used for refrigeration systems.
It is recommended not to open the packaging
before the unit is at the nal place for installation.
Handle the unit with care. The packaging allows
the use of a forklift or pallet jack for handling. Use
appropriate and safe lifting equipment.
• Unit must be carried out by qualied personnel
only.
• Handle the unit with caution always in a vertical
position (max. oset from the vertical: 15°).
They provide necessary information regarding
safety and proper usage of this product.
• Store and transport the unit in an upright
position.
• Store the unit between -30 °F and 120 °F.
• Don’t expose the packaging to rain or corrosive
atmosphere.
• After unpacking, check that the unit is complete
and undamaged.
• Use appropriate / safe lifting equipment. Avoid
put pressure against carton box or on any
component of the Unit.
3BC251686497767en-US0801
Manual
Installation & Maintenance
Installation precautions
Installation
Do not braze if the condensing unit is under
pressure.
Never place the unit in a ammable
atmosphere.
Place the unit in such a way that it is not
blocking or hindering walking areas, doors,
windows or similar.
• Ensure adequate space around the unit for air
circulation and to open doors. Refer to picture 1
for minimal values of distance to walls.
• Avoid installing the unit in locations which are
daily exposed to direct sunshine for longer
periods.
• Avoid installing the unit in aggressive and/or
dusty environments.
• Ensure a foundation with horizontal surface (less
than 3° slope), strong and stable enough to carry
the entire unit weight and to eliminate vibrations
and interference.
• The unit must be securely installed on a stable
and rigid support, and x from the beginning.
• It is recommended to install the unit on rubber
grommets or vibration dampers (not supplied).
• Slowly release the nitrogen holding charge
through the Schraeder port.
• Connect the unit to the system as soon as
possible to avoid oil contamination from
ambient moisture.
• Avoid material entering into the system while
cutting tubes. Never drill holes where burrs
cannot be removed.
• The unit ambient temperature may not exceed
120 °F during o-cycle.
• Ensure that the power supply corresponds to
the unit characteristics (see nameplate).
• Use clean and dehydrated refrigeration-grade
copper tubes and silver alloy brazing material.
• Use clean and dehydrated system components.
• The suction piping connected to the compressor
must be exible in 3 dimensions to dampen
vibrations. Furthermore piping has to be done
in such a way that oil return for the compressor
is ensured and the risk of liquid slug over in
compressor is eliminated.
• Braze with great care using state-of-the-art
techniques and vent piping with nitrogen gas
ow.
• Connect the required safety and control devices.
Remove the internal valve when using the
Schraeder port for this.
• It is recommended to insulate the suction pipe
up to the compressor inlet with 3/4" mm thick
insulation.
4 BC251686497767en-US0801
Manual
Eective Voltage R.M.S (V%)
Range
Range
10-25 ~22 psi
360˚
Installation & Maintenance
Fan speed controller
ADJUSTING
(Fig.3)
Turn the range
Catalog No. 1 Turn
XGE- 4* Approx, 22psi
Adjusting screw to clockwise (+) for increasing
the setting value, and to counterclockwise (-) for
decreasing the setting value.
(Please use the right chart as reference for
adjusting.)
CAUTION
• Do not move the screw other than the Range
Adjusting Screw.
• Do not apply torque that exceeds 0.35 Nm for
adjusting screw. Otherwise it may damage part
of resin case. Then range adjustment may not be
possible.
OPERATION CHECK
Install and calibrate the product correctly and the
check its operation to conrm correct function of
the whole system.
CAUTION
• It can not be used for ammonia refrigeration
system.
• This product is not available for the system which
apply pressure more than 681psi (47bar) because
the rated maximum working pressure of this
product is 681psi (47bar) if the pressure more
than the rated maximum working pressure is
applied to this product, it causes transformation
of characteristics or the destruction.
Operation will become unstable when using
other than sine waves for the power supply. In
this case, proper control may not be achieved.
• To ensure stable operation, sine wave AC power
supply must also be stable.
F.V.S Setting psi(bar) E.P.B.
Factory
Set
276
(19)
Adjusting Range
Min. Max.
145
(10)
363
(25)
psi
(bar)
Fixed 87
(6)
100
95
45
35
Fig.3 Fig.4
Max. Speed
50Hz at 230v
Min. Speed
E.P. B. (Fixed)
Cut O
F.V. S.
60Hz at 230v
Pressure
F.V.S.: Full Voltage Set point
The pressure at which the control delivers 95%
output eective voltage. (R.M.S.(V%))
E.P.B.: Eective Proportional Band
Range
360˚
10-25 ~22 psi
The decrease in pressure below the calibration
set point required to transmit a 45% of eective
voltage. (R.M.S.(V%))
5BC251686497767en-US0801
Manual
Problem Possible cause Conrmation method/Remarks
Installation & Maintenance
"F.V.S. pressure setting is
inadequate"
Check the operation of the fan motor.
• Pressure setting value may be too high if the fan motor rotates
continuously at low speed or stops.
=> Turn the F.V.S. pressure adjustment screw in (-) direction to set
the F.V.S. pressure lower.
• Pressure setting value may be too low if the fan motor rotates
continuously at full speed.
=> Turn the F.V.S. pressure adjustment screw in (+) direction to set
the F.V.S. pressure higher.
Note:
- In the event that the F. V. S. pressure setting value is lost
(for XGE-4*), rotate the pressure setting screw fully toward the
(-) symbol, then rotate it 9 times*1 towards the (+) symbol. This
should return the F.V.S. pressure setting value to around the factory
standard setting value of 1.9 MPa.
- Always conduct a test run after changing the setting to conrm
the system operates correctly.
PCB was damaged by drop
impact
Overcurrent was applied
Fan motor doesn’t rotate,
or rotates at full speed
Surge voltage was applied Check if a lightning surge or similar occurred or not.
PCB burn-out
Control is unstable.
Cannot x the plug Plug tting screw stripping
If voltage output cannot be obtained, the internal ceramic PCB may
be damaged.
Check if the rated value of the fan motor is within tolerance.
=> Max. 3A (or 4A conditionally)
• Check if a load is restricting the fan motor rotation. (Such as snow
or freezing.)
• Check if a line-to-line short circuit is detected at a connection
point of the fan motor.
• It is recommended to protect the circuit with a thermal relay or
circuit protector.
Note: Make sure to remove the cause of burn-out before
conducting a test run. Otherwise, burn-out may occur again.
Burn-out may be caused by water leakage due to an improperly
tted plug.
Check the following items to nd any problems with the tting.
• Is it tightened to the prescribed torque?
• Is the plug tted with the attached gasket?
• Is there a gap between the plug and body?
When a screw other than attached one is used, the body may be
damaged allowing water to leak inside, causing burn-out. Do not
use screws other than those attached.
Burn-out of PCB may be caused by water leaking from the
damaged part of the body.
In particular, check the connection of the pressure coupling for any
leakage. Leakage may occur when copper gasket is not used or
misaligned.
Check the pressure introduction position
• Receiver valve fully opened
• Filter drier clogged o,
• Shreader core press down.
It is recommended to detect the pressure from the exit side of
condenser.
Screws may become stripped when they are tightened with a
torque greater than the prescribed value. Please tighten with the
prescribed torque.
6 BC251686497767en-US0801
Loading...