Compact Unit Heater
4
Operating Instructions and Owner’s Manual
START-UP AND PERFORMANCE CHECK LIST
Customer: ___________________________ Date: _______________________________ Job Name/Number: ____________________
Unit Model No.: _______________________ Serial No.: ____________________________ Gas Inlet Pressure: _____________________
Type of Gas: _________________________ Name Plate Input: _____________________ Gas Outlet/Manifold Pressure: ___________
•
A listed terminal is installed on the vent pipe and air inlet pipe termination?
•
The vent system and air inlet system were inspected and determined to function properly?
•
The heater, gas and electrical installation was inspected by the local authority have jurisdiction of the installation?
•
The structure supporting the heater and means to attach the heater to the structure are appropriate and secure?
•
The gas supply piping has been leak checked?
•
The voltage has been verified to be in the acceptable range?
•
The “Operation Procedure” in the manual was followed to put the heater into operation?
•
All fans and motors move freely?
Model
HSU100
HSU125
HSU150
HSU200
HSU250
HSU300
HSU400
A
36.0”
(914 mm)
36.0”
(914 mm)
33.2”
(843 mm)
40.4”
(1026 mm)
40.4”
(1026 mm)
40.4”
(1026 mm)
40.4”
(1026 mm)
B
20.7”
(526 mm)
20.7”
(526 mm)
23.1”
(587 mm)
25.8”
(655 mm)
28.5”
(724 mm)
31.5”
(800 mm)
39.8”
(1012 mm)
C
22.4”
(570 mm)
22.4”
(570 mm)
22.1”
(562 mm)
22.1”
(562 mm)
22.1”
(562 mm)
22.1”
(562 mm)
22.1”
(562 mm)
D
22.6”
(573 mm)
22.6”
(573 mm)
22.6”
(573 mm)
29.4”
(748 mm)
29.4”
(748 mm)
29.4”
(748 mm)
29.4”
(748 mm)
E
18.5”
(469 mm)
18.5”
(469 mm)
21.2”
(538 mm)
23.9”
(607 mm)
26.6”
(677 mm)
29.4”
(747 mm)
37.7”
(960 mm)
F
14.4”
(366 mm)
14.2”
(360 mm)
15.1”
(384 mm)
16.8”
(426 mm)
18.1”
(459 mm)
19.7”
(500 mm)
23.6”
(600 mm)
G (Mounting
Hole)*
Refer to Figure 1A and 1B
3/8 - 16
3/8 - 16
3/8 - 16
3/8 - 16
3/8 - 16
H
8.9”
(226 mm)
8.9”
(226 mm)
6.2”
(158 mm)
6.3”
(159 mm)
6.3”
(159 mm)
6.3”
(159 mm)
6.3”
(159 mm)
I
4.8”
(122 mm)
4.8”
(122 mm)
4.8”
(121 mm)
2.2”
(55 mm)
2.2”
(55 mm)
2.1”
(53 mm)
2.3”
(58 mm)
J
7.3”
(187 mm)
6.2”
(158 mm)
2.7”
(69 mm)
2.7”
(69 mm)
2.7”
(69 mm)
2.7”
(69 mm)
2.7”
(69 mm)
K
4.0”
(101 mm)
4.2”
(107 mm)
4.5”
(115 mm)
4.0”
(103 mm)
5.3”
(134 mm)
5.0”
(126 mm)
4.8”
(121 mm)
L
11.3”
(287 mm)
10.6”
(269 mm)
9.4”
(239 mm)
10.8”
(275 mm)
10.2”
(258 mm)
12.1”
(309 mm)
15.2”
(385 mm)
M
32.0”
(813 mm)
32.0”
(813 mm)
32.7”
(830 mm)
34.6”
(879 mm)
34.9”
(885 mm)
35.6”
(904 mm)
36.1”
(917 mm)
N (Mounting
Holes)
N/A
N/A
16.6”
(422 mm)
23.5”
(598 mm)
23.5”
(598 mm)
23.5”
(598 mm)
23.5”
(598 mm)
O (Mounting
Holes)
N/A
N/A
6.2”
(159 mm)
6.2”
(159 mm)
6.2”
(159 mm)
6.2”
(159 mm)
6.2”
(159 mm)
P
3.7”
(95 mm)
3.7”
(95 mm)
3.7”
(95 mm)
3.5”
(89 mm)
3.5”
(89 mm)
3.5”
(89 mm)
3.5”
(89 mm)
Q
15”
(380 mm)
15”
(380 mm)
14.9”
(380 mm)
14.9”
(380 mm)
14.9”
(380 mm)
14.9”
(380 mm)
14.9”
(380 mm)
Gas
Connection
1/2”
1/2”
1/2”
1/2”
3/4”
3/4”
3/4”
Vent
Connector Size
4”
(102 mm)
4”
(102 mm)
4”
(102 mm)
4”
(102 mm)
6”
(152 mm)
6”
(152 mm)
6”
(152 mm)
Fan Diameter
18”
(457 mm)
18”
(457 mm)
20”
(508 mm)
22”
(559 mm)
22”
(559 mm)
22”
(559 mm)
24”
(610 mm)
*Listed is the hole diameter and threads per inch to accept threaded rod.
HEATER DIMENSIONS IN INCHES (mm) - TABLE 2