Horizontal installation, Iom manual hbh series heat controller, inc, Figure 3: typical horizontal unit installation – Comfort-Aire HBH Series 6-10 Tons User Manual
Page 8: Notice

IOM Manual
HBH SERIES
Heat Controller, Inc.
7
Horizontal Installation
Figure 3: Typical Horizontal Unit Installation
(by others)
Thermostat
Wiring
Insulated supply duct with
at least one 90 deg elbow
to reduce air noise
Return Air
Supply Air
Unit Hanger
3/8" [10mm] threaded rods
Flexible Duct
Connector
Optional
Balancing Valve
Water Out
Optional Low Pressure Drop Water
Control Valve
(can be internally mounted
on some models)
Stainless steel braid hose
with integral ÒJÓ swivel
Building
Loop
HORIZONTAL INSTALLATION
Figure 3: Typical Horizontal Unit Installation
Water In
Ball valve with optional
integral P/T plug
Unit
Power
CAP
CAP
EAP
BSP
CBP
LEFT RETURN STRAIGHT DISCHARGE
CAP
CAP
FRONT
BSP
A
EAP
CBP
B
A
O
PQR
K
M
F
G
E
D
BSP
RIGHT RETURN STRAIGHT DISCHARGE
1
EAP
2
CAP
CAP
2
FRONT
CBP
1
5
4
LEGEND
CAP=Compressor Access Panel
CBP=Control Box Panel
BSP=Blower Service Panel
EAP=Expansion Valve Access panel
1=Water Outlet 1-1/4Ó FPT (072-096) 1-1/2Ó FPT (120)
2=Water Inlet 1-1/4Ó FPT (072-096) 1-1/2Ó FPT (120)
3=Condensate 3/4Ó FPT
4=High Voltage 1-1/8Ó [2.9cm] KO
5=Low Voltage 7/8Ó [2.2cm] KO
HANGER BRACKET DIMENSIONS
87Ó
[221cm]
1.0Ó
[2.54cm]
PLAN VIEW
TOP
4.3Ó
[10.8cm]
34.1Ó
[86.6cm]
FRONT
CONTROL BOX
U
T
S
V
1.3Ó
[3.3cm]
condensate
LEFT RETURN LEFT VIEW-
AIR COIL SIDE
LEFT RETURN END DISCHARGE
CBP
EAP
BSP
CAP
CAP
FRONT
E
D
F
G
CAP
CBP
CAP
EAP
BSP
FRONT
FRONT
CONTROL BOX
PLAN VIEW
TOP
V
S
U
RIGHT RETURN RIGHT VIEW-
AIR COIL SIDE
RIGHT RETURN END DISCHARGE
1.3Ó
[3.3cm]
condensate drain
3
NOTES FOR LEGEND:
1. Access is required for all removable panels and installer should take care to comply with
all building codes and allow adequate clearance for future field service.
2. Water inlet and water outlet connections are available on either side (left or right) of the
unit. Qty (2x) MPT Plugs are shipped loose in a plastic bag tied to the water leg in front of
the unit. Installer must plug water inlet/outlet side not being connected to.
3. Condensate drain is available on end opposite compressor.
4. Electrical access is available on either side (left or right) of the front.
5. Electric box is on right side. It can be field converted to left side. Conversion should only
be attempted by qualified service technician.
NOTES:
- All dimensions in inches (cm)
- Units require 3Õ (9.1 cm) clearance for water connections, CAP, CSP, EAP and BSP service access.
- Overall cabinet width dimensions does not include filter rail and duct flange.
SERVICE ACCESS
3Õ (91 cm.) TYPICAL
ALL CONFIGURATIONS
LEFT RETURN STRAIGHT DISCHARGE
CAP
CAP
FRONT
BSP
A
EAP
CBP
B
A
O
PQR
K
M
F
G
E
D
BSP
RIGHT RETURN STRAIGHT DISCHARGE
1
EAP
2
CAP
CAP
2
FRONT
CBP
1
5
4
LEGEND
CAP=Compressor Access Panel
CBP=Control Box Panel
BSP=Blower Service Panel
EAP=Expansion Valve Access panel
1=Water Outlet 1-1/4Ó FPT (072-096) 1-1/2Ó FPT (120)
2=Water Inlet 1-1/4Ó FPT (072-096) 1-1/2Ó FPT (120)
3=Condensate 3/4Ó FPT
4=High Voltage 1-1/8Ó [2.9cm] KO
5=Low Voltage 7/8Ó [2.2cm] KO
HANGER BRACKET DIMENSIONS
87Ó
[221cm]
1.0Ó
[2.54cm]
PLAN VIEW
TOP
4.3Ó
[10.8cm]
34.1Ó
[86.6cm]
FRONT
CONTROL BOX
U
T
S
V
1.3Ó
[3.3cm]
condensate
LEFT RETURN LEFT VIEW-
AIR COIL SIDE
LEFT RETURN END DISCHARGE
CBP
EAP
BSP
CAP
CAP
FRONT
E
D
F
G
CAP
CBP
CAP
EAP
BSP
FRONT
FRONT
CONTROL BOX
PLAN VIEW
TOP
V
S
U
RIGHT RETURN RIGHT VIEW-
AIR COIL SIDE
RIGHT RETURN END DISCHARGE
1.3Ó
[3.3cm]
condensate drain
3
NOTES FOR LEGEND:
1. Access is required for all removable panels and installer should take care to comply with
all building codes and allow adequate clearance for future field service.
2. Water inlet and water outlet connections are available on either side (left or right) of the
unit. Qty (2x) MPT Plugs are shipped loose in a plastic bag tied to the water leg in front of
the unit. Installer must plug water inlet/outlet side not being connected to.
3. Condensate drain is available on end opposite compressor.
4. Electrical access is available on either side (left or right) of the front.
5. Electric box is on right side. It can be field converted to left side. Conversion should only
be attempted by qualified service technician.
NOTES:
- All dimensions in inches (cm)
- Units require 3Õ (9.1 cm) clearance for water connections, CAP, CSP, EAP and BSP service access.
- Overall cabinet width dimensions does not include filter rail and duct flange.
SERVICE ACCESS
3Õ (91 cm.) TYPICAL
ALL CONFIGURATIONS
Notice!
Installation Note - Ducted Return: Many horizontal
WSHPs are installed in a return air ceiling plenum
application (above ceiling). Vertical WSHPs are commonly
installed in a mechanical room with free return (e.g. louvered
door). Therefore, filter rails are the industry standard and
are included on Heat Controller commercial heat pumps
for the purposes of holding the filter only. For ducted return
applications, the filter rail must be removed and replaced
with a duct flange or filter rack. Canvas or flexible connectors
should also be used to minimize vibration between the unit
and ductwork.
Air Coil - To obtain maximum performance, the air coil should
be cleaned before start-up. A 10% solution of dishwasher
detergent and water is recommended for both sides of the
coil. A thorough water rinse should follow. UV based anti-
bacterial systems may damage e-coated air coils.