4
A. Table - Unit Data
Model No.
Nominal
Capacity
(BTU HR)
Cooling
Electrical
Rating
Compressor
Rated Load
Amps
Compressor
Locked
Rotor
Amps
Fan Motor
Rated Load
Amps
Fan Motor
Locked
Rotor
Amps
Refrigerant
R-410A
(oz)
Minimum
Wire Size*
AC Circuit
Protection
***Installer
Supplied
Minimum
Generator
Size**
1 Unit / 2 Units
H541815A72X
13,500
120 Vac
60 Hz 1 ph
12.7
68.0
2.8
8.0
19.5
12 AWG
Copper
Up to 24'
20 Amp
3.5 kW / 5.0 kW
H541816A72X
15,000
13.2
70.0
2.8
8.0
20.1
20 Amp
3.5 kW / 5.0 kW
H541915A72X
13,500
12.7
68.0
2.8
8.0
19.5
20 Amp
3.5 kW / 5.0 kW
H541916A72X
15,000
13.2
70.0
2.8
8.0
20.1
20 Amp
3.5 kW / 5.0 kW
H551816A72X
15,000
13.2
70.0
2.8
8.0
21.0
20 Amp
3.5 kW / 5.0 kW
H551916A72X
15,000
13.2
70.0
2.8
8.0
21.0
20 Amp
3.5 kW / 5.0 kW
* For wire length over 24 ft., consult the National Electrical Code for proper sizing.
** Dometic Corporation gives
GENERAL
guidelines for generator requirements. These guidelines come from experiences
people have had in actual applications. When sizing the generator, the total power usage of your RV must be considered.
Keep in mind generators lose power at high altitudes and from lack of maintenance.
*** CIRCUIT PROTECTION: Time Delay Fuse or Circuit Breaker Required.
B. Roof Requirements
● A 14-1/4″ x 14-1/4″ (±1/8″) square opening (hereinafter referred to as “roof opening”) is required for installing this
unit. This opening is part of the return air system of the unit and
MUST
be finished in accordance with NFPA 1192.
●
Roof construction with rafters/joists support frames on a minimum of 16 inch centers.
C. Table - Air Distribution Duct Sizing & Design
Duct Cross Sectional Area
21.0 Sq. In. Min.
Duct Size
Depth
Width
Total Duct Length
Duct Length (short run)
1-1/2 In. Min. - 2-1/2 In. Max.
7.0 In. Min. - 10.0 In. Max.
15.0 Ft. Min. - 40.0 Ft. Max.
1/3 Total Duct Length
Register Requirements per A/C Unit
Number Required
Supply Register Free Air Area
Return Register Free Air Area
Distance From Duct End
Distance From Elbow
4 Min. - 8 Max.
14.0 Sq. In.
40.0 Sq. In.
5.0 In. Min. - 8.0 In. Max.
15.0 In.
Total System Static Air Pressure
Blower at High Speed,
Filter & Grille In Place
0.55 - 1.10 In. W.C.
SPECIFICATIONS
