Charging Refrigerant; Refrigerant Charge Worksheet - LG ARND DCR4 Series Installation Manual

DANGER
• Refrigerant gas is heavier than air and replaces oxygen. A massive leak will result in oxygen depletion, especially in basements, and an
asphyxiation hazard will result in serious injury or death.
• If refrigerant gas leaks during installation, ventilate the area immediately. Refrigerant gas will result in producing toxic gas if it comes into
contact with fire. Exposure to this gas will result in severe injury or death.
WARNING
• Refrigerant cannot be charged until field wiring has been completed. Improper installation could result in physical injury and / or death.
• Refrigerant must only be charged after performing the leak test and the vacuum drying. Improper installation could result in physical injury
and / or death.
• When charging a system, take care that its maximum permissible charge is never exceeded. Improper installation could result in physical
injury and / or death.
• Charging with an unsuitable substance can cause explosions and accidents, so always ensure that the appropriate R410A refrigerant is
used. Improper installation could result in physical injury and / or death.
• Refrigerant cylinders must be opened slowly. Improper installation could result in physical injury and / or death.
• Always use protective gloves and eyewear when charging refrigerant. It could result in physical injury and / or death.
• When the refrigerant system is to be opened, refrigerant must be treated according to the applicable local, state, and federal codes. Improp-
er installation could result in physical injury and / or death.
• To avoid compressor breakdown,
physical injury and / or death.

Refrigerant Charge Worksheet

The calculation of the additional charge should take into account the length of pipe and Correction Factor (CF) value of DOAS unit.
System Tag or ID____________________
Line No. Description
1 Linear feet of 1/4" liquid line
2 Linear feet of 3/8" liquid line
3 Linear feet of 1/2" liquid line
4 Linear feet of 5/8" liquid line
5 Linear feet of 3/4" liquid line
6 Linear feet of 7/8" liquid line
7 Linear feet of 1" liquid line
8 Split Rooftop DOAS (with Energy Recovery Wheel)
9 Split Compact DOAS
10 Split Compact DOAS
11 Split Compact DOAS
12 ADDITIONAL Refrigerant Charge Required (Sum of lines 1-11)
13 Outdoor Unit Factory Refrigerant Charge
Total ODU FACTORY Refrigerant Charge
14
(Sum of factory refrigerant charges for all ODUs in the system, lines 13A – 13H)
TOTAL SYSTEM CHARGE
15
Sum of Additional Refrigerant Charge Required (line 12) and Total ODU Factory Refrigerant Charge (line 14)
CF (Ref.) = Correction Factor for Refrigerant Charge.
1
do not charge the refrigerant more than the specified amount. Improper installation could result in
Job Name: __________________________________________
Project Manager: ____________________________________
Chassis I.D.
2
2
2
2
2
2
2
DB
DC
DC
DC
13A ARUM072*TE5
13B ARUM096*TE5
13C ARUM121*TE5
13D ARUM144*TE5
13E ARUM168*TE5
13F ARUM192*TE5
13G ARUM216*TE5
13H ARUM241*TE5
Due to our policy of continuous product innovation, some specifications may change without notification.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. "LG" is a registered trademark of LG Corp.

CHARGING REFRIGERANT

Refrigerant Charge Worksheet
Size Quantity
127k (200k)
70k
120k
143k
72k
96k
121k
144k
168k
192k
216k
241k
For refrigerant charge purposes, consider only the liquid line; ignore the vapor line(s).
2
Date: ______________
CF (Ref.) Total (lbs.)
1
0.015
0.041
0.079
0.116
0.179
0.238
0.323
11.35
6.23
6.23
6.23
14.3
23.2
23.2
26.5
26.5
30.9
37.5
37.5
45