- 11 -
•
Charge the system after pipe brazing, leak testing and evacuating. Liquid
must always be charged into the hide side.
•
Use inverted siphons to prevent liquid from flooding back to the
compressor and aid oil returning to the compressor.
•
The subcooling at the condensing unit shall be around 10
°
F. The charge
may be complete when there are no more bubbles forming in the sight
glass.
•
Head pressure: 125-150 psig at 70-90
°
F ambient temperatures.
•
The evaporator’s constant pressure expansion valve is set around 35-
40
°
F at factory. This pressure setting gives a dew point to maintain the
humidity for storing wine.
•
Suction pressure: adjust the AXV to 30-35 psig.
•
The temperature split across the evaporator shall be 8-10
°
F at 55
°
F wine
room temperature.
•
The superheat at the evaporator unit shall be around 9-18
°
F under low -
high heat load at normal ambient temperatures.
•
If the superheat is high, check the subcooling first to know if the refrigerant
charge is sufficient. If the charge is not sufficient, add more refrigerant. If
the charge is good, then increase the evaporator suction pressure by
turning the hex nut (5/16”) clockwise.
•
If the superheat is low, then decrease the evaporator suction pressure by
turning the hex nut (5/16”) counter-clockwise.
Fig. 10 Expansion Valve
The line sizes and refrigerant charges are listed as follows.
MODEL
REFRIGERATION
LINES
LIQUID
LINE
SUCTION
LINE
DRAIN
LINE
CHARGE
CellarTec 1/8
TON-SSL
<= 50 FT
1/4" OD
3/8” OD
1/2” OD
R134a/
15 OZ
CellarTec 1/4
TON-SSL
<= 50 FT
1/4" OD
3/8” OD
1/2” OD
R134a/
19 OZ
CellarTec 1/3
TON-SSL
<= 50 FT
1/4" OD
1/2” OD
1/2” OD
R134a/
26 OZ
CellarTec 1/2
TON-SSL
<= 50 FT
1/4" OD
1/2” OD
1/2” OD
R134a/
32 OZ
Содержание 1/2 Ton-SSL
Страница 6: ...5 Fig 3 WM150 450SCU Condensing Unit Fig 4 WM 650SCU Condensing Unit...
Страница 17: ...16 Fig 15 CellarTec 1 8 1 3 Ton SSL Wiring Diagram...
Страница 18: ...17 Fig 16 CellarTec 1 2 Ton SSL Electrical Wiring Diagram...
Страница 19: ...18 Fig 17 Low Ambient Temperature CellarTec 1 8 1 3 Ton SSL Electrical Wiring Diagram...
Страница 20: ...19 Fig 18 Low Ambient Temperature CellarTec 1 2 Ton SSL Electrical Wiring Diagram...