Rapid 7500 136 Installation, operation & service manual - page 43
SECTION 9: V
ENTING
31 of 143
9.3 Heat Exchan
g
er Condensate Drain
Connection
Air t
u
rno
v
er
u
nits are pro
v
ided
w
ith a male NPT
condensate drain connection. Refer to the air
t
u
rno
v
er
u
nit dra
w
ings for the exact location. This
connection m
u
st
b
e extended a
w
ay from the air
t
u
rno
v
er
u
nit for proper drainage. Use pipe,
prefera
b
ly stainless steel or similar material that
w
ill
b
e non-corrosi
v
e and can handle the high heat.
A P-Trap is preferred and sho
u
ld
b
e constr
u
cted
u
as a g
u
ideline.
FIGURE 15: Condensate Drain
The condensate sho
u
ld
b
e piped into the
bu
ilding
drainage system. The drain line sho
u
ld
b
e pitched
a
w
ay from the
u
nit at a minim
u
m of 1/8" (.32 cm) per
foot. Refer to local codes for additional req
u
irements.
Sealed drain lines req
u
ire
v
enting to ass
u
re proper
condensate flo
w
.
Heat Exchanger
Minimize This Dimension
4" (10.1 cm)
Minimum
4" (10.1 cm)
Minimum
NOTE:
Drain line must
not be run higher
than this level