Desert Aire LW, Инструкция по установке и эксплуатации

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40
LW Model
Reheat Condenser Coil
Pressure Drop Range ”WC
(
Δ
P Between Ports 1-2)
0.22” - 0.24”
0.22” - 0.24”
0.22” - 0.24”
0.18” - 0.20”
0.18” - 0.20”
0.18” - 0.20”
Dry Evaporator Coil Pressure Drop
Range ”WC
(
Δ
P Between Ports 2-3)
Wet Evaporator Coil Pressure Drop
Range ”WC
(
Δ
P Between Ports 2-3)
0.30” - 0.32”
0.24” - 0.26”
0.27” - 0.29”
0.24” - 0.26”
0.15” - 0.17”
0.15” - 0.17”
0.36” - 0.38”
0.29” - 0.31”
0.34” - 0.36”
0.31” - 0.33”
0.19” - 0.21”
0.19” - 0.21”
The arrows indicate the direction of airflow.
The numbers correspond to the airflow balancing port locations.
03
05
08
10
12
15
COILS ELECTRICAL
FIL
TERS
Figure 16 - LW model pressure drop ranges
5.3.2 Unit Operation
5.3.2.1 Controller Set-Points
It is important to determine comfortable set-points and to avoid further controller
adjustments. It takes time for a unit to establish equilibrium at a given set-point.
Therefore, continued set-point adjustments will lead to high energy consumption and
user discomfort.
• SPACE PRESSURIZATION – Assure that doors and windows are sealed
adequately to prevent infiltration of warm, humid air. A positive pressure in
the controlled environment is strongly recommended. Only introduce
required amounts of outdoor air when mandated by code.
• OPERATING PARAMETERS – LW series dehumidifiers are designed to
operate in ambient temperatures between 32° and 70°F. Running the
system beyond this envelope can lead to a host of problems and possible
system failure.
5.3.2.2 Refrigeration System Pressures
Many factors affect refrigeration temperatures on a given day. Such factors
include ambient temperature, airflow volume and relative humidity. However,
for the sake of troubleshooting:
• Normal suction temperature range: 12° to 50°F
• Normal discharge temperature range: 80° to 120°F
Desert Aire - LW Manual