Component Functional Test; Charging Procedures; Table 12 Liquid Line Multiplier For R-410A At Various Line Lengths; Table 13 Liquid Line Multiplier For R-407C At Various Line Lengths - Data Aire DAPA-2.5 Installation, Operation & Maintenance Manual

Liquid Line Liquid Line
Nominal Size Size OD
(inches) (inches)
3/8
1/2
5/8
3/4
1
Liquid Line
Liquid Line
Nominal Size Size OD
(inches)
(inches)
3/8
1/2
5/8
3/4
1

Component Functional Test

Critical components can be functionally verified by using the manual mode of the Mini-dap4. See Mini-
dap4 User Manual for details regarding how to use Menu I – Manual Control (Service Level).

Charging Procedures

Table 12 Liquid Line Multiplier for
Multiplier
1/2 0.067
5/8 0.108
3/4 0.154
7/8 0.239
1 1/8 0.380
Table 13 Liquid Line Multiplier for
Multiplier
1/2 0.072
5/8 0.115
3/4 0.165
7/8 0.255
1 1/8 0.407
WARNING: If the system is charged from a vacuum, the preheating of the
compressor is not necessary. But if starting a compressor that has not
been charged from a vacuum, the crankcase heater must be energized
for a minimum of 12 hours to reduce the possibility of liquid slugging on
startup. Failure to energize the crankcase heater could result in
compressor damage.
NOTICE Prior to refrigerant charging, the proper tools and/or equipment must
be available, and the system vacuum and moisture removal procedure must
have been carried out. Refer to Section
Procedures and 5.3 Triple Evacuation and Dehydration Procedure
charging the system.
R-410A at Various Line Lengths
Equivalent Feet (Meters)
50 100
(15.2) (30.5)
3.35 6.71
5.38 10.76
7.70 15.40
11.95 23.90
19.02 38.04
R-407C at Various Line Lengths
Equivalent Feet (Meters)
50 100
(15.2) (30.5)
3.58 7.17
5.75 11.49
8.23 16.46
12.77 25.54
20.33 40.65
5.2 Charging/Installation
49
150 200
(45.7) (61.0)
10.06 13.41
16.13 21.51
23.10 30.80
35.85 47.80
57.06 76.08
150 200
(45.7) (61.0)
10.75 14.33
17.24 22.99
24.69 32.92
38.31 51.08
60.98 81.31
Work
prior to