Electric heat, Installation, Preparation – Titus HAB Horizontal Air Handler Belt Drive User Manual
Page 7: Hab installation manual
HAB Installation Manual
IOM-HAB-00
06-30-04
Figure 12. Mixing Box Dimensions
Table 3. Mixing Box Dimensions
Mixing Box Dimensions
Model
A
B
C
D
E
F
Damper Ship Wgt.
(lbs)
CFM
SP
HAB08
8
16
16
6
2
18
(2) 16 x 8
44
800
0.07
HAB12
8
16
16
6
2
27.5
(2) 26 x 8
49
1200
0.08
HAB16
8
20
16
8
4
29
(2) 28 x 8
53
1600
0.1
HAB20
8
20
16
8
4
36
(2) 34 x 8
63
2000
0.07
HAB30
10
25
18
8
7
45
(2) 44 x 10
101
3000
0.06
HAB40
12
32
20
10
10
48
(2) 46 x 12
120
4000
0.03
HAB60
14
40.25
22
12
14.25
58
(2) 56 x 14
197
6000
0.05
HAB80
14
45
22
15
16
66
(2) 56 x 14
205
8000
0.04
Note: All dimensions in inches.
Electric Heat
Preparation
Installation
1. Position heater element section over the blower
wheel of the HAB unit.
Note: Heater baffle must be aligned with the
blower cut-off scroll. Heater should be rotated
180 degrees if necessary to align. This ensures
proper blower discharge of air over the heater
elements.
1.
2.
2. Attach electric heat plenum to unit using #6 or larger
sheet metal screws.
Note: Ensure plenum is securely attached to
HAB unit only and not to blower housing
extension.
Ensure duct materials are compatible for 250º F
operation. Refer to NFPA pamphlet 90A and 90B for
more information.
Ensure ample room exists in the ductwork. Electric
heater must have at least 24 inches of straight duct
clearance before an elbow. If 24 inches are
unavailable, devices such as turning vanes or baffles
may be required.
Note: Electric heaters are incompatible with
discharge equipment.
3. Add insulation, if necessary, to outside of heater
plenum section.
Note: Do not insulate duct heater.
The following figure shows unit and heater components.
7 of 9