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130
System Refrigerant Charge Calculator (lbs.).
1
CF (Ref.) = Correction Factor for Refrigerant Charge.
2
For refrigerant charge purposes, consider only the liquid line; ignore the vapor line(s).
The system will stop operation due to excessive or insufcient refrigerant; therefore, always charge the unit properly. When servicing,
always refer to any notes about system piping length and additional refrigerant amounts.
REFRIGERANT CHARGE WORKSHEET
System Tag or ID:
Job Name: __________________________________________
Project Manager: ____________________________________ Date: ______________
Line # Description Chassis I.D. Size Quantity CF (Ref.)
1
Total (lbs.)
1 Linear feet of 1/4" liquid line tubing
2
— — 0.015
2 Linear feet of 3/8" liquid line tubing
2
— — 0.041
3 Linear feet of 1/2" liquid line tubing
2
— — 0.079
4 Linear feet of 5/8" liquid line tubing
2
— — 0.116
5 Linear feet of 3/4" liquid line tubing
2
— — 0.179
6 Linear feet of 7/8" liquid line tubing
2
— — 0.238
7 Linear feet of 1" liquid line tubing
2
— — 0.323
8 Wall Mounted + Art Cool Mirror SE 7k to 15k 0.53
9 Wall Mounted + Art Cool Mirror S8, S5 18k to 24k 0.62
10 1-Way Cassette TJ 7k to 12k 0.44
11 2-Way Cassette TL 18k to 24k 0.35
12 4-Way 2' x 2' Cassette TR 5k to 7k 0.40
13 4-Way 2' x 2' Cassette TR 9k to 12k 0.55
14 4-Way 2' x 2' Cassette TQ 15k to 18k 0.71
15 4-Way 3' x 3' Cassette TN 9k to 15k 1.06
16 4-Way 3' x 3' Cassette TM 18k to 24k 1.41
17 4-Way 3' x 3' Cassette TP 24k to 28k 1.06
18 4-Way 3' x 3' Cassette TN 36k 1.41
19 4-Way 3' x 3' Cassette TM 42k to 48k 1.41
20 High Static Ducted BH 7k to 24k 0.57
21 High Static Ducted BG 15k to 42k 0.97
22 High Static Ducted BR 48k 1.37
23 High Static Ducted B8 76k to 95k 2.20
24 Low Static Ducted, Low Static Ducted Bottom Return B1, B3 7k to 15k 0.37
25 Low Static Ducted, Low Static Ducted Bottom Return B2, B4 18k to 24k 0.82
26 Vertical / Horizontal Air Handling Unit NJ 18k to 24k 1.04
27 Vertical / Horizontal Air Handling Unit NJ 30k 1.04
28 Vertical / Horizontal Air Handling Unit NJ 36k 1.57
29 Vertical / Horizontal Air Handling Unit NK 42k to 54k 2.00
30 Ceiling Suspended VJ 18k to 24k 0.77
31 Convertible Surface Mount—Ceiling/Wall VE 9k to 12k 0.22
32 Floor Standing CE (U) 7k to 15k 0.37
33 Floor Standing CF (U) 18k to 24k 0.82
34 Heat Recovery Units: PRHR021A, PRHR031A, PRHR041A — — 1.1
35
ADDITIONAL Refrigerant Charge Required
Sum of lines 1 – 34
36
Total WSU FACTORY Refrigerant Charge
Sum of factory refrigerant charges for all WSUs in the system. Refer to Table 78 through Table 81 for WSU charge data.
37
TOTAL SYSTEM CHARGE
Sum of Additional Refrigerant Charge Required (line 35) and Total WSU Factory Refrigerant Charge (line 36)
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