CTHN-S
ERIES
I
NSTALLATION
, O
PERATION
AND
S
ERVICE
M
ANUAL
62 of 91
14.4 Vertical Non-Pressurized Outside Air Supply for Double Heater Installation
Req
u
irements:
• Heaters m
u
st be controlled by a common
thermostat.
14.5 Horizontal Non-Pressurized Outside Air Supply for Double Heater Installation
Req
u
irements:
• Heaters m
u
st be controlled by a common
thermostat.
Sweeping 'T'
Connection
6" (15 cm) Single Wall Pipe
Vent Cap
4" (10 cm)
Single Wall Pipe
Band Clamp
(Recommended)
Burner
Burner
Flex Hose
(Recommended)
Flex Hose
(Recommended)
Roof
Description
Part Number
Vent Cap 6" (15 cm)
90502302
Sweeping 'Y'
Connection
Vent Cap
Outside
W
all
4" (10 cm) Single Wall Pipe
(Seal All Joints)
6" (15 cm) Single Wall Pipe
Flex Hose
(Recommended)
Band Clamp
(Recommended)
Burner
Burner
Description
Part Number
Vent Cap 6" (15 cm)
90502302