8510197P01-D © Danfoss Maneurop
06-2002
3
Instructions
responsible for ensur ing compliance could
invalidate the user’s authorization to operate the
equipment.
2 - Transportation, storage
·
The compressor must be handled in the verti-
cal position (maximum offset from the vertical: 15
°
).
Should the compressor be handled in an upside-
down position, its performance may no longer be
insured.
·
Beware that all compressor handling must be
carried out with extreme caution to avoid any
shocks. Dedicated packing handles are to be used
for all required manipulation of the compressor;
otherwise appropriate and safe lifting equipment
is to be used during handling and unpacking.
(Refer to Fig. 3).
·
Any damage noticed on either the packaging
or the product itself upon reception should be
indicated on a Customer Claim addressed to the
shipping company. The same recommendation ap-
plies to all instances when transpor t
instructions have not been fully respected.
·
Please review the safety instructions printed
on the cardboard packaging before storage.
·
Verify that the compressor is never stored in
an ambient temperature of below -35
°
C (-31
°
F)
or above the limit specified on the compressor
name plate (Ps or Ts, whichever limit is reached
first, depending on the refrigerant used).
·
Ensure that the compressor and its packaging
are not exposed to rain and/or a corrosive,
flammable atmosphere.
3 - Safety measures prior to assembly
·
All installation and servicing is to be performed
by qualified personnel in compliance with all
pertinent practices and safety procedures.
·
The compressor must be located in a
ventilated area to ensure that the ambient
temperature never exceeds 50
°
C (122
°
F) during
the off-cycle.
·
Make certain that the compressor can be
mounted on to a horizontal plane with a maximum
slope of 3
°
.
·
Check that the compressor model corresponds
to system specifications (capacity, use of
refrigerant, etc.).
·
Verify that the power supply corresponds to
compressor motor characteristics (refer to the
compressor nameplate for precision).
·
Ensure that the refrigerant-charging equip-
ment, vacuum pumps, etc. for HFC refrigerant
systems have been specifically reserved for these
refrigerants and never used with other CFC, HCFC
refrigerants.
·
Use only clean and dehydrated refrigeration-
grade copper tubes as well as silver alloy
brazing material.
·
Verify that all system components are appropri-
ate (use of refrigerant, etc.), clean and
dehydrated before being connected to the completed
assembly.
·
Perform a check on the suction lines: Horizon-
tal sections are to be sloped downwards towards
the compressor. Suction gas velocity must be high
enough to provide for an adequate oil return.
This velocity must be within 8 to 12 m/s in vertical
risers. In horizontal pipes, this velocity can
decrease to 4 m/s. The use of U-trap and double-
suction risers may be required on vertical
sections, but not in excess of 4 m unless a second
U-trap system has been fitted (refer to Fig. 4).
Suction line piping must be insulated in order to
minimize the effects of superheating.
·
Perform a check on the discharge lines: Pip-
ing to the condenser must be designed so as to
prevent liquid return to the compressor. The use
of non-return valves may prove necessary,
depending on the position of the compressor with
respect to the condenser. A suitably-sized U-trap
may also be necessary if the condenser has been
placed above the compressor (refer to Fig. 5).
·
The piping connected to the compressor must
be configured on the basis of a flexible 3-axis de-
sign to dampen vibrations and designed in such a
way as to prevent free liquid refr igerant
migration and drainage back to the compressor
sump (refer to Fig. 5).
·
Note that all local and regional regulations and
safety standards, such as EN378, must be taken
into account when designing, connecting and
running the system.
4 - Assembly
The compressor’s time of exposure to the at-
mosphere during installation shall be held to a
minimum. The compressor connection must be fast
in order to avoid moisture contamination of the
lubricant.
·
The grommets must be installed under the
compressor feet, as shown in Figs. 1 and 2.
Rubber grommets are to undergo compression
until contact is made between the flat washer and
the steel mounting sleeve.
Before opening the compressor connection
fittings, it is mandatory to connect a 1/4" service
hose to the Schrader fitting on the compressor
shell in order to gradually release the nitrogen
holding charge.
·
Ensure that no material enters into the system
while cutting the tubing. Moreover, never drill holes
in the pipe work after installation.
·
Should additional components need to be
connected on to the compressor sight glass or oil
equalization ports, it is recommended that such an
operation be carried out prior to final assembly, to
allow for compressor inclination and movement.
·
Avoid flare-type connections and exercise great
care while brazing (use only state-of-the-art
practices); apply a nitrogen gas flow to prevent oxi-
dation inside the tubing, especially when HFC
refrigerants are being used. All brazing material is
to contain a minimum of 5% silver.
·
When brazing, protect the terminal box and painted
surfaces of the compressor from torch heat damage.
·
For compressors equipped with Rotolock, re-
move the Teflon gaskets when brazing Rotolock
connectors with the solder sleeve and be aware
that original suction and discharge gaskets must
be replaced.
·
When installing Rotolock fittings, always use
two wrenches when tightening any fittings to en-
sure that the torque is effectively cancelled on the
adjacent tubing and fittings. Do not exceed the
maximum tightening torque for Rotolock
connections to the compressor.
(1’’ Rotolock 80Nm - 1’’1/4 Rotolock 90Nm
1’’3/4 Rotolock 110Nm - 2’’1/4 Rotolock 130Nm).
·
Be sure to connect the required safety and con-
trol devices onto compressor shutoff valves or fittings.
·
In case of oil return through the Schrader fit-
ting on the compressor shell, make sure the inter-
nal valve is removed.
5 – Leak detection
Never use oxygen or dry air in order to avoid
the risk of fire or explosion.
·
Perform a leak detection test on the complete
system by means of: a dry nitrogen pressure test,
Contents
1
- Introduction
2
- Transportation, storage
3
- Safety measures prior to assembly
4
- Assembly
5
- Leak detection
6
- Vacuum procedure
7
- Electrical connections
8
- Filling the system
9
- Verification before commissioning
10 - Start up
11 - Troubleshooting
12 - Maintenance
13 - Replacement
14 - User advisory
1- Introduction
These instructions pertain to Performer
®
hermetic
scroll compressors used for A/C purposes. They
are intended to provide necessary information
regarding safety features and proper handling of
this product.
Note that this is a general document for the
entire range of scroll compressors;
cer tain details therefore may not be
applicable to the par ticular model you
purchased. Please keep your manual and all
relevant infor mation handy for future
reference.
·
Equipment descr iption: This compressor
is delivered with all assembly equipment (rubber
mounting grommets and screws, washers,
connecting sleeves depending on models)
the electrical box and cover and Instructions.
·
Approved list of refrigerants:
o The SM/SY series can be used with R22,
o The SZ 084 to 185 series can be used with
R134a,R407C, R404A and R507A.
o The SZ 240 and 300 can be used with
R407C.
·
Compressors are filled with lubricant before
leaving the factory:
o The SM series with mineral oil (ref. 160P),
o The SZ series with poloyester oil (ref. 160SZ),
o The SY series with poloyester oil (ref. 320SZ).
These lubricants must not be mixed with one another.
·
Performer
®
Scroll compressors must only be
used for their designed purpose(s) and within their
scope of application (refer to Fig. 6).
Compressors are delivered under nitrogen
gas pressure (between 0.3 and 1 bar) and hence
cannot be connected as is; please refer to the
“Assembly” section for further details.
Compressors are not certified for mobile and
explosion-proof applications. Any use of
flammable refrigerant (e.g. hydrocarbons) or air is
also strictly forbidden.
·
Under all circumstances, the EN378 (or other
applicable local regulation) requirement must be
fulfilled.
In agreement with the European directive
97/23/EC (PED), the compressor name plate gives
the low side maximum allowable pressure Ps and
the highest corresponding temperature Ts calcu-
lated for applicable refrigerants.
When pressure tests are required on the sys-
tem, they are to be perfor med by qualified
personnel, in paying close attention to potential
pressure-related hazards and heeding the
pressure limits displayed on the compressor
nameplate or in the application guidelines.
Modifications or alterations (such as brazing
on the shell) not expressly approved by the party
