Emerson OW4 Serie Instructions De Service

G e n e r a l i n f o r m a t i o n :
All versions use a Hall-Sensor to measure the oil level. A magnetic float changes
its position according to the oil level. The hall sensor converts these magnetic
field changes into an equivalent signal, which is used by the internal electronic
to show the actual oil level with the LED's. For application in refrigeration
systems according to EN 378.
Notes:
OW is developed for HFC refrigerants, subcritical CO
blends.
OW5 is specially adapted to the requirements of transcritical CO
and has to be used with dedicated types of CO
S y s t e m c o m p o n e n t s : ( s e e t a b l e " O v e r v i e w " a n d F i g . 1 , 3 )
No Description No
1 Base unit 11/12 Adapter with thread connection
2 Sight glass O-ring OW4 13
3 Sight glass OW4 14
4 Sight glass O-ring OW5 15
5 Sight glass OM5 16
6 Spring washer: 3 pcs (OW4) 17
7 Screws (M6 x 45) 18
8 Countersunk screw 1pcs (OW5) 19
Screw transport holder
9 20
(discard)
10 Adapter front O-ring
T e c h n i c a l D a t a :
OW4
Max. working pressure PS 60 bar
Test Pressure PT 66 bar
selected HFC/ HFO blends
Medium compatibility
& CO
2
Supply Voltage 24VAC±10%, 50/60 Hz
Current 0.05A
Alarm contact rating 3A/230 VAC
Alarm switch SPDT
Time delay warning 10 sec.
Time delay alarm 20 sec.
Medium temperature -20...+80°C
Storage, transport and ambient
-15...+50°C (housing)
temperature
Protection class IP65 (IEC529EN60529)
Marking
acc. EMC and LVD
Emerson Climate Technologies GmbH
Am Borsigturm 31 I 13507 Berlin I Germany
S a f e t y i n s t r u c t i o n s :
• Read operating instructions thoroughly. Failure to comply can result in device
failure, system damage or personal injury.
• According to EN 13313 it is intended for use by persons having the
appropriate knowledge and skill.
• In a severely contaminated system, avoid breathing acid vapors and avoid
contact with skin from contaminated refrigerant / lubricants. Failure to do so
and specified HFO
2
could result in injury.
• Before opening any system make sure pressure in system is brought to and
systems
2
remains at atmospheric pressure.
adapters.
2
• Do not exceed the specified maximum ratings for pressure, temperature,
voltage and current.
• Before installation or service disconnect all voltages from system and device.
Description
Note: Float contains lead and has to be recycled in case of disposal!
A : I n s t a l l a t i o n w i t h S c r e w A d a p t e r s : ( s e e F i g . 1 - 3 )
Adapter O-ring backside
Adapter types: OM0-CCA, OM0-CBB, OM0-CCB + CO
Flange ring - Aluminium (OW4) /
1. Preparation: Remove plug or sight glass from thread on compressor and make sure
Steel (OW5)
the thread is free of sealing material and no indication of damages.
Flange adapter
2. Put adapter ring (14) loose on vessel thread connection.
Flange adapter O-ring backside
3. Mount adapter (11 or 12) with consideration adapter type as follows:
Rotalock adapter
NPTF tapered threaded Adapters (11):
Gasket Rotalock adapter backside
- Inspect thread part and sealing surface is free of nicks and burrs.
Power supply cable OW-24V-3
- Wrap teflon tape around male thread in proper direction
Relay connector for OM3-Nxx
- Screw adapter into port and tight by hand until stop reached.
- Tighten by wrench with 80 Nm for 3/4"-14NPTF connections
- Do not turn backward!
Warning: Over or insufficient tightening, will damage the thread or cause
the leakage.
OW5
- Follow below step 4 - 8.
100 bar UNF/UNEF threaded Adapters (12):
110 bar - OM0-CBB + CO
to proper seating of the O-ring when mounting the adapter. Tighten by hand and
CO only
2
apply 50 Nm torque. Follow below step 4 - 8.
- OM0-CCB + CO
reuse old female port O-ring. Tighten by hand and apply 50 Nm torque. Follow
below step 4 - 8.
4. Remove and discard the screw transport holder (9) from the back side, which
10 sec.
secure screws and sight glass during transportation.
120 sec.
5. Locate O-ring (10) into the Adapter (11 or 12) (front side).
6. Locate the stamped groove into the adapter ring (14) in line with the base unit (1)
marking (Fig.2).
7. Mount the base unit (1) including O-ring (10) to the adapter ring (14).
Note: For proper function the unit must be installed horizontally by rotating
Adapter ring (14) (Fig.3).
8. Tighten the three screws (7 & 8) only hand tight, then gradually and evenly in ½
turns until reaching the dedicated torque of 12 Nm. This procedure is mandatory
to achieve full leak tightness.
www.emersonclimate.eu
Operating instruction
Oil Level Monitoring Systems
OW4 / OW5 TraxOil
-Versions
2
-Versions: mount O-ring (13) to the adapter (12). Pay attention
2
-Versions: locate O-ring (13) inside vessel female port - do not
2
Date: 26.07.2019
B : I ns t a l l a t i o n w i t h R o t a l o c k a d a p t e r s : ( s e e F i g . 1 - 3 )
Adapter types: OM0-CCD, OM0-CCE + CO
1. Remove and discard the screw transport holder (9) from the back side,
which secure screws and sight glass during transportation.
2. Locate O-ring (10) into the Adapter. (front side).
3. Locate the stamped groove into the adapter (15/17) in line with the base unit
(1) marking (Fig.2).
4. Mount the base unit (1) including O-ring (10) to the adapter (15/17).
5. Tighten the three screws (7 & 8) only hand tight, then gradually and evenly
in ½ turns until reaching the dedicated torque of 12 Nm. This procedure is
mandatory to achieve full leak tightness.
6. Remove the sight glass from the compressor.
7. Mount supplied PTFE gasket (18) into nut of adapter (17). Put entire
assembly to compressor connection and while holding horizontally to
comply with Fig.3, tighten by hand and apply torque of 90 Nm for OM0-
CCD (wrench size 50 mm) and 65 Nm for OM0-CCE (wrench size 42 mm).
Note 1: For proper function the unit must be installed horizontally (Fig.3).
Note 2: Check Rotalock adapters for tightness after 1-2 days of operation.
C : I n s t a l l a t i o n w i t h F l a n g e a d a p t e r : ( s e e F i g . 1 - 3 )
Adapter types: OM0-CUA, OM0-CCC + CO
The use of flange type adapter is applicable to vessels having the same holes
arrangement as adapter. This insures the horizontal installation of OW (Fig.3).
1. Follow steps 1 - 6 like Rotalock installation.
2. Mount O-ring (16) between adapter (15) and compressor. Uses screws M6
(not part of delivery) and tighten acc. to compressor manufacturer
instruction.
P r e s s u r e T e s t :
After completion of installation, a pressure test must be carried out as follows:
- according to EN 378 for systems which must comply with European pressure
equipment directive 14/68/EU.
- to maximum working pressure of system for other applications.
Warning:
• Failure to do so could result in loss of refrigerant and personal injury.
• The pressure test must be conducted by skilled persons with due respect
regarding the danger related to pressure
T i g h t n e s s T es t :
Conduct a tightness test acc. to EN 378-2 with appropriate equipment and
method to identify leakages of external joints.
OW45_OI_ML_R05_865893.docx
-Versions
2
-Versions
2