Dectron DRY-O-TRON Supervisaire DSV 020 User Manual

After 30 minutes of operation near nameplate room conditions:
a) The refrigerant sight glass should be full of liquid. There should be no
bubbles.
b) The evaporator pressure should be between:
R22 R134A R407C R410A
60 - 80 29 - 43 55 - 75 105 - 135
PSIG PSIG PSIG PSIG
c) The condenser pressure should be between:
R22 R134A R407C R410A
225-275 145 - 181 245 - 300 340 - 420
PSIG PSIG PSIG PSIG
Note: Units with multiple refrigeration circuits will have multiple sight
glasses, suction-access valves, and discharge-access valves.
d) Some units may have compressor oil-pressure access valves. The
pressure on any oil-pressure access valve should be no less than
25 PSI above evaporator pressure.
e) The compressors of some units may have oil-level sight glasses. In
this case, the oil level should be near the middle of the sight glass.
The oil in the sight glass should not be foaming.
f) The temperature of hot gas leaving the compressor(s) should be in
one of the following ranges:
Dectron, Inc. March 2012
DECTRON
Owner’s Manual Series Dehumidifier
Data subject to change without notice.
241
Check Pressures Startup
Outdoor units (RS, RB) have
refrigerant sight glasses located behind
transparent windows in access panels.
Oil Sight Glass
Horizontal
Outdoor Unit
Refrigerant
Sight Glass
Horizontal
Indoor Unit
Refrigerant
Sight Glass
Vertical
Indoor Unit
Pressure Access
Valves
Pressure
Access Valves
Sample
Actual layout
may vary.
Samples
Actual layout
may vary.
Sight glass
in door aligns with
compressor sight glass.
WARNING
Risk of frostbite. Risk of eye damage.
Improper handling of refrigerants and refrigerant hoses can allow release of liquid
refrigerant. Exposure to liquid refrigerant can cause frostbite and severe eye damage.
Wear gloves, eye protection, and any other appropriate protective equipment. Follow
all safety procedures.
STARTUP
R-22 R134A R-407C R-410A
180°F (82°C) to 160°F (77°C) to 160°F (71°C) to 150°F (66°C) to
200°F (93°C) 180°F (88°C) 180°F (82°C) 170°F (77°C)
DSH/DSV/RSH/DBH/RBH
DA5/DV5/RA5/DB5/RB5
6.35

Dectron DRY-O-TRON Supervisaire DSV 020 Specifications

General

Brand	Dectron
Model	DRY-O-TRON Supervisaire DSV 020
Category	Controller
Language	English