43
CONDENSATE DRAIN
CONDENSATE DRAIN & DRAIN NEUTRALIZER (cont.)
Co
nd
en
sat
e D
rain
FIGURE 29
VENT TUBE HEIGHT
VENT TUBE HEIGHT IS OPTIONAL:
OPTION A:
INSTALL VENT TUBE HEIGHT
WITH TOP OF THE TUBE BELOW THE LEVEL
OF THE WATER SENSOR TO ALLOW THE
FURNACE TO RUN WHEN THE DRAIN IS
BLOCKED. THIS OPTION WILL SPILL WATER
OUT OF THE TUBE WHEN THE DRAIN IS
BLOCKED, BUT THE FURNACE WILL
CONTINUE TO RUN.
OPTION B:
INSTALL VENT TUBE HEIGHT
WITH TOP OF THE TUBE ABOVE THE LEVEL
OF THE LOWER CONDENSATE WATER
SENSOR TO SHUT THE FURNACE DOWN
WHEN THE DRAIN IS BLOCKED. THIS OPTION
WILL NOT SPILL WATER FROM THE DRAIN
VENT, BUT THE FURNACE WILL ALSO NOT
CONTINUE TO RUN WITH A BLOCKED DRAIN.
CONDENSATE DRAIN LOCATING
INSTRUCTIONS
NOTE:
THIS IMAGE INTENTIONALLY DEPICTS A GENERIC VIEW OF
THE DRAIN ROUNTING, THE INSTALLER HAS THE OPTION TO
ROUTE THE DRAIN TO THE RIGHT OR LEFT OF THE
FURNACE AS NEEDED.
ST-A1194-70-00
A
I
R
F
L
O
W
OVERFLOW LINE
(REQUIRED ONLY WHEN
OPTIONAL NEUTRALIZER
CARTRIDGE IS USED)
TO FLOOR DRAIN
OR
CONDENSATE PUMP
DRAIN LINE
NEUTRALIZER
CARTRIDGE
(OPTIONAL)
HEIGHT OPTION “A”
HEIGHT OPTION “B”
HEIGHT OF LOWER
CONDENSATE DRAIN SENSOR
CONDENSATE
TRAP
ST-A1194-70-00
