Raypak HD401 User Manual

25
Venting Installation Tips
Support piping:
· horizontal runs- at least every five (5) feet.
·
vertical runs - use braces:
· under or near elbows
Follow items listed below to avoid personal injury or
property damage.
· Cut nonmetallic intake pipe with fine-toothed hack-
saw.
· Do not use nonmetallic intake pipe or fittings that
are cracked or damaged.
· Do not use nonmetallic intake fittings if they are
cut or altered.
· Do not drill holes, or use screws or rivets, in non-
metallic intake pipe or fittings.
To make metallic vent joints:
· Do not install seams of vent pipe on bottom of
runs.
· 100% Seal all joints and seams with high temper-
ature silicone sealant.
Venting Configurations
For heaters connected to gas vents or chimneys, vent
installations shall be in accordance with the section
on, Venting of Equipment, of the latest edition of
NFGC, or in Canada, B149 Installation Code for Gas
Burning Appliances and Equipment, or applicable pro-
visions of local building codes.
WARNING: Examine the venting system at least
once a year. Check all joints and vent pipe
connections for tightness, corrosion or deterioration.
NOTE: The words "Flue Exhaust", "Flue" and
"Exhaust Vent" are used interchangeably.
8
FEET OR LESS
Fig. 20: Natural Draft Vertical Venting (Category I)
Model
N
o.
A
ppl
iance
C
at
egory
C
ert
i
f
i
ed
Venti
ng
Mat
eri
al
Minimum
Recommended
Vent Size (inches)
Min./Max. Venting Length with
-
out Barometric Damper (feet)**
Air Inlet
Max. Length
(feet)
Min.
Max.
H
D
101
H
D
151
I
Ty
pe B
or
E
quiv
alent
4
6
25
100
H
D
201
H
D
251
HD
301
5
(HD201) 6
(HD251) 6
(HD301) 11
HD401
6
8
**Vent lengths are based on a lateral length of 2 feet. Refer to the latest edition of the NFGC for further details. (ANSI Z223.1)
Maximum 4 elbows.
Table K: Natural Draft Vertical Venting

Raypak HD401 Specifications

General

Brand	Raypak
Model	HD401
Category	Water Heater
Language	English