AERCO Esteem O&M Manual - Manual (Page 33)

27
Installing Vent and Combustion Air
Intake
DANGER!
T
HE
E
STEEM
399 L
OW
NO
X MUST BE VENTED
AND SUPPLIED WITH COMBUSTION AIR AS SHOWN
IN THE
E
STEEM
399 L
OW
NO
X
V
ENT
S
UPPLE
-
MENT
,
INCLUDED IN THE BOILER INSTALLATION
ENVELOPE
. R
EFER TO VENT KIT INSTRUCTIONS
(GF-125V)
FOR ADDITIONAL VENT INSTALLA
-
TION INSTRUCTIONS
. O
NCE INSTALLATION IS
COMPLETE
,
INSPECT THE VENT AND COMBUS
-
TION AIR SYSTEM THOROUGHLY TO ENSURE
SYSTEMS ARE AIRTIGHT AND COMPLY WITH THE
INSTRUCTIONS GIVEN IN THE VENTING SUPPLE
-
MENT AND ARE WITHIN ALL REQUIREMENTS OF
APPLICABLE CODES
. F
AILURE TO COMPLY WITH
ALL INSTALLATION REQUIREMENTS CAN CAUSE
SEVERE PERSONAL INJURY OR DEATH
.
Installing Condensate Drain
Assembly
1. Locate the condensate drain assembly
and install as shown in Figure 16, page 28.
N
OTICE
The installer may want to fi ll the con-
densate trap with water prior to assem-
bling on the unit.
2. Remove the retaining nut and rubber seal
from the condensate drain assembly and
slide over the heat exchanger condensate
drain nipple. Connect the condensate
drain assembly to the retaining nut and
tighten. Hand tight only!
WARNING!
E
NSURE THE CONDENSATE DRAIN ASSEMBLY
CONTAINS THE PLASTIC SEATED BALL
. D
O NOT
INSTALL THE CONDENSATE DRAIN ASSEMBLY IF
THE BALL IS LOST OR MISSING
,
REPLACE THE
ENTIRE ASSEMBLY
.
3. Remove the compression nut and rubber
seal from the drain outlet.
4. Using 3/4” x 2’ flexible PVC tube provid-
ed, slide the compression nut and rubber
seal over the pipe
N
OTICE
The use of 3/4” PVC or CPVC pipe is
also acceptable. If 3/4” pipe is used de-
burr and chamfer pipe to allow mating
onto the drain assembly.
5. Thread the rubber seal into the compres-
sion nut to ease installation of the pipe to
the drain assembly.
6. Seat the pipe onto the drain assembly
and tighten the compression nut. Hand
tight only!
N
OTICE
The installer may opt to using 13/16” ID
tubing in lieu of rigid piping.
N
OTICE
The drain line materials must be mate-
rials approved by the authority having
jurisdiction. In absence of such author-
ity, PVC and CPVC piping must com-
ply with ASTM D1785 or D2845. The
cement and primer used on the pip-
ing must comply with ASME D2564 or
F493. For installations in Canada, use
CSA or ULC certifi ed PVC or CPVC
pipe, fi ttings and cement/primer.
7. Continue the pipe from the drain assem-
bly to a floor drain or condensate pump.
N
OTICE
When selecting and installing a con-
densate pump, ensure the pump is ap-
proved for use with condensing boil-
ers and furnaces. The pump should
be equipped with an overfl ow switch to
prevent property damage from potential
condensate spillage.
8. The Esteem 399 Low NOx will typically
produce a condensate that is considered
Chapter 6 Installing Vent, Air Intake & Drain
GF-125