12
Installation
Venting Configurations are the Same for SS Models:
3 inch concentric vent can only be used with 3 inch rigid piping.
4 inch concentric vent can only be used with 4 inch rigid piping.
DO NOT mismatch concentric vent terminations with different rigid piping as it may cause the heater to mal-
function or cause a lock-out condition.
DO NOT use 2 inch rigid venting with concentric vent terminations.
DO NOT use 6 inch rigid venting with concentric vent terminations.
Note: For Horizontal Power Direct Vent configurations, GHE119SS/SU models will need to have a 45 degree elbow
on the intake and a 90 degree elbow on the exhaust, if they are on the same plane.
Flexible Polypropylene pipe (ft)
Pipe Size (IN.) 3 4
Max PV Intake Exhaust Intake Exhaust
GHE80 and GHE 100 Models 0 60 0 60
GHE119-500 N/A N/A 0 80
Power Direct Vent
Max Vent Length (Eq.Ft.)
Rigid Pipe Diameter
Inlet Models
Altitude
Range
2" (5 cm) 3" (8 cm) 4" (10 cm) 6" (15 cm)
Inlet Outlet Inlet Outlet Inlet Outlet Inlet Outlet
GHE80SU-130(A)
or
GHE80SU-160(A)
0-2000
(0 - 609 m)
20
(6.1 m)
20
(6.1 m)
60
(18.3 m)
75
(22.9 m)
120
(36.6 m)
135
(41.1 m)
N/A N/A
2001-8999
(610 - 2743 m)
20
(6.1 m)
20
(6.1 m)
40
(12.2 m)
55
(16.8 m)
120
(36.6 m)
135
(41.1 m)
N/A N/A
GH80SU-200(A)
or
GHE80SU-300(A)
0-8000 ft
(0-2438 m)
N/A N/A
60
(18.3 m)
75
(22.9 m)
120
(36.6 m)
135
(41.1 m)
120
(36.6 m)
135
(41.1 m)
GHE100SU-130(A)
or
GHE100SU-160(A)
0-2000
(0 - 609 m)
20
(6.1 m)
20
(6.1 m)
60
(18.3 m)
75
(22.9 m)
120
(36.6 m)
135
(41.1 m)
N/A N/A
2001-8999
(610 - 2743 m)
20
(6.1 m)
35
(10.7 m)
40
(12.2 m)
55
(16.8 m)
120
(36.6 m)
135
(41.1 m)
N/A N/A
GH100SU-200(A)
or
GHE100SU-250(A)
or
GHE100SU-300(A)
0-2000
(0 - 609 m)
N/A N/A
60
(18.3 m)
75
(22.9 m)
120
(36.6 m)
135
(41.1 m)
N/A N/A
2001-8999
(610 - 2743 m)
N/A N/A
40
(12.2 m)
55
(16.8 m)
120
(36.6 m)
135
(41.1 m)
120
(36.6 m)
135
(41.1 m)
GHE100SU-350(A)
or
GHE100SU-400(A)
0-8999 ft
(0 - 2743 m)
N/A N/A
50
(15.2 m)
65
(19.8 m)
70
(21.4 m)
85
(25.9 m)
120
(36.6 m)
135
(41.1 m)
GHE119SU-500(A)
0-10000 ft
(0-3435 m)
N/A N/A
60
(18.3 m)
60
(18.3 m)
120
(36.6 m)
130
(39.6 m)
120
(36.6 m)
130
(39.6 m)
Min Vent Length (Eq.Ft.)
Rigid Pipe Diameter
All Models See Below
5
(1.5 m)
15
(15.2 m)
5
(1.5 m)
15
(15.2 m)
5
(1.5 m)
15
(15.2 m)
5
(1.5 m)
15
(15.2 m
TABLE 2. POWER DIRECT VENTING LENGTHS
Models GHE80SU-200(A) & GHE80SU-300(A) are limited to an altitude of 8000 ft, while all other models are limited to 8999 ft.
Model GHE119SU-500(A) if installed above 5000 ft, refer to "Gas Valve Instructions" for adjustments.
Models GHE80SU-200(A) & GHE80SU-300(A) are limited to an altitude of 8000 ft, while all other models are limited to 8999 ft.
NOTE: Units naturally de-rate as vent length is extended from minimum vent. De-rate also occurs when
reducing the diameter of the vent from the default size (GHE80/100 default is 3", GHE119 default is 4").
For each 90° Elbow, reduce pipe length by five (5) feet.
For each 45° Elbow, reduce pipe length by two and a half (2.5) feet.
Note: Vent pipe size should not be mixed for venting these units.
Use same diameter pipe for all venting of the unit.