Oil Level Check - Trane City RTSF050 Installation Operation & Maintenance

Maintenance Procedures
Table 6 - POE Oil Properties
Description
Moisture content
Acid Level
FWD
(mg KOH/g)
Power supply
Capacities
Cooling capacity on water (1)
Heating capacity on water (2)
Running the chiller at minimum load is the best for the quickest return of oil to the separator and sump. The machine
Fan motor
still needs to sit for approximately 30 minutes before the level is taken. At minimum load, the discharge superheat
Fan power input (3)
should be highest. The more heat in the oil as it lays in the sump, the more refrigerant will boil off in the sump and
Current amps (3)
Start-up amps
leave more concentrated oil. The oil level in the oil sump can be measured to give an indication of the system oil
Air flow
charge. Follow the procedures below to measure the level.
minimum
1. Run the unit fully unloaded for approximately 20 minutes. nominal
maximum
2. Cycle the compressor off line.
Main coil
Water entering/leaving connections

Oil Level Check

Electric heater (accessory for blower only)
Electric power supply
Figure 9 – Determining oil level in the oil separator
Heating capacity
Hot water coil (accessory for blower only)
Heating capacity (4)
G2 filter (filter box accessory)
Quantity
Dimensions ( LxWxth)
G4 filter (filter box accessory)
Quantity
Dimensions ( LxWxth)
Condensate pump (accessory)
Water flow - lift height
Not available for FWD30 and FWD45
Sound level (L/M/H speed)
Sound pressure level (5)
Sound power level (5)
Unit dimensions
Width x Depth
Height
Shipped unit dimensions
Width x Depth
Height
Weight
Colour
Recommended fuse size
Unit alone (aM/gI)
Unit with electric heater (gI)
(1) Conditions: Water entering/leaving temperature: 7/12 °C, Air inlet temperature 27/19°C DB/WB - Nominal air flow
(2) Conditions: Water entering/leaving temperature: 50/45 °C, Air inlet temperature 20°C DB - Nominal air flow
(3) At high speed with nominal air flow.
(4) Water entering/leaving temperature 90/70 °C, air inlet temperature 20 °C DB, Nominal air flow.
(5) A rectangular glass wool duct 1m50 long is placed on the blower.The measurement is taken in the room containing the blower unit.
Heat exchanger operating limits:
FWD:
*water temperature: max 100° C
1 = Oil separator
*absolute service pressure: min 1 bar/max 11 bars
2 = Valve
3 = 1/4" refrigeration hose
Accessories - Hot water coil:
4 = Sight glass
*water temperature: min. +2° C/max. 100° C
5 = Minimum oil level
*absolute service pressure: min 1 bar/max 11 bars
6 = Maximum oil level
4
42
Technical Data
08
(V/Ph/Hz)
(kW) 5,2
(kW) 6,3
(type)
(kW) 0,23
(A) 1,1
(A) 3,2
(m /h) 490
3
(m /h) 820
3
(m /h) 980
3
(type)
(Dia) 3/4"
How to measure the oil level:
(V/Ph/Hz) 230/1/50 1. Use the oil drain valve (bottom side) and the
(kW) 2/4
(kW) 6,3
2
(mm) 386x221x8
2. The initial oil charge should be approximately at the
-
(mm) -
(type)
(l/h - mm)
After the unit has run for a while, the oil level in the
(dB(A)) 36/40/43
sump can vary greatly. However, if the unit has run
(dB(A)) 46/50/53
'normal' conditions for a long time, the minimum and
(mm) 890 x 600
maximum oil levels should correspond to values shown
(mm) 250
in below table. However excessive oil in the system will
(mm) 933 x 644 deteriorate the evaporator approach temperature.
(mm) 260
(kg) 32
separator
(A) 8/16
(A) 16 (2kW),25 (4kW)
The field charging procedure depends on the
circumstances that resulted in the need for oil charge.
1. Some services procedures may result in loss of
2. Additionally, some maintenance procedures
3. Finally, leaks may result in a loss of oil that must be
Oil charging data.
The oil quantity is written on the nameplate of the unit.
Acceptable Levels
less than 300 ppm
less than 0.5 TAN
12
230/1/50
8,3
11,9
2 x direct drive centrifugal
0,46
2,2
5,5
980
1650
1970
ISO R7 rotating female
3/4"
230/1/50 or 400/3/50 400/3/50
8
service valve on the oil separator (top side). This
measurement can be made, when the circuit is not
12
running. Note: the bottom plate of the oil separator is
2
approximately 25mm thick.
486x271x8 586x321x8
2
level in of the above chart. This is the approximate
486x264x48 586x314x48
oil level if all the oil is in the oil lines, filter, and oil
Centrifugal
sump, and the unit is in vacuum so that there is no
24 - 500
refrigerant dissolved in the oil.
38/41/44 46/50/53
48/51/54 56/60/63
1090 x 710 1290 x 820
300
1133 x 754 1333 x 864
310
Oil
46
Compressors type
galvanised steel
size
8" 8/16 "M" type
40 (230V),3*16 (400V)
10" "N" type
small quantities of oil that must be replaced (oil
analysis, compressor filter replacement, re-tubing the
evaporator, and so forth).
may result in virtually all the oil being removed
(compressor motor burn or total removal of the charge
to trouble shoot a unit).
replaced.
20 30
15 18,8
18,9 20,9
0,65 1,04
3,1 4,7
9,3 14,1
1400 1800
2300 3000
2600 3600
1 1/2" 1 1/2" 1 1/2"
400/3/50 400/3/50
10 12
17,4 22,4
2 2
586*421*8 586*621*8
2 2
586*414*48 586*614*48
47/52/57 47/52/58
57/62/67 57/62/68
1290 x 970 1290 x 1090
350 450
1333 x 1008 1333*1133
360 460
61 76
Min. oil Max. oil
level (mm) level (mm)
8/16 50 mm 8/25 180 mm
3*20 3*25
50 mm 140 mm
UNT-PRC002-GB
RLC-SVX023A
45
30,1
38,2
1,51
5,5
16,5
2700
4500
5400
12
34,5
2
2
650
660
118
8/25
3*25