Bosch WTMC5521 - Manual (Page 7)

7
Gas connection
d WARNING d
Explosion hazard!
Use a new AGA or CSA approved
gas supply line.
Install a shutĆoff valve.
Securely tighten all gas
connections.
Have a qualified person make sure
gas pressure does not exceed
14 in. W.C./ 3.49 kPa/ 0.506 psig.
(Natural and Propane Gas).
Example of a qualified person
include:
- licensed heating personnel,
- authorized gas supplier personnel,
- authorized service personnel.
Failure to do can result in explosion
or fire.
Risk of death or injury!
All gas line connections must be teĆ
sted for leaks prior to appliance
operation. Apply soapy water to gas
line connections and check for forĆ
mation of new bubbles. Bubbles inĆ
dicate leak!
When installing the gas supply to the
gas dryer inlet pipe, do not exceed 310
lbf in (35 Nm).
d WARNING d
Never use an open flame to test for
gas leaks.
Gas type
This gas dryer when equipped for use
with NATURAL GAS, will employ an
orifice size 46 and have a gas outlet
pressure of 3.5 in. W.C. This gas dryer
when equipped for use with PROPANE
GAS, will employ an orifice size of 1.21
mm, and have a gas outlet pressure of
11 in. W.C.
Your dryer must have the correct valve
for the type of gas in your home. Valve
information is located on the rating
plate behind the door below the drum.
If the ratingĆplate information does not
agree with the type of gas available,
contact your dealer or our customer
service team (see page 21).
Gas supply line
1 /
2
" I.D. pipe is recommended.
3 /
8
" approved tubing is acceptable for
lengths under 20 ft (6.1 m) if local
codes and gas supplier permit.
Must include
1 /
8
" NPT plugged
tapping, immediately upstream of the
gas connection.
A shut off valve must be included:
-
USA:
An individual manual shutĆoff valve
must be installed within 6 ft (1.8 m)
of the dryer in accordance with the
National Fuel Gas Code, ANSI
Z223.1.
- Canada:
An individual manual shutĆoff valve
must be installed in accordance
with the B149, Installation Codes,
CAN/CSA B149.1 and CAN/CSA
B149.2. It is recommended that an
individual manual shutĆoff valve be
installed within 6 ft (1.8 m) of the
dryer.
1
1111
2 3 4 5
1 ć 1 /
2
" NPT gas supply line
2 ć Gas shutĆoff valve
3 ć
1 /
8
" NPT plugged tapping
4 ć 3 /
8
" pipe to flare adapter fitting
5 ć 3 /
8
" flexible gas connector (to the dryer)
The shutĆoff valve should be easy to
reach for opening and closing.
Note:
The dryer must be checked for proper
operation whenever the gas
connections have been broken.
Dryer gas pipe
The gas pipe that comes out through
the rear of the dryer has a 3 /
8
" male
pipe thread.
Connection of the dryer
d CAUTION
Connection must be made by
a qualified technician.
The dryer must be disconnected
from the gas supply piping system
during testing pressure.
When using for the first time make
sure that there is no air in the piping
system.
d WARNING d
Do not use copper pipes and tubing
if connected to natural gas.
The connection may be different,
according to the supply line type, size
and location.
If local codes permit, use a flexible
stainless steel connector (Design
certified by the America Gas
Association or CSA International)
to connect the dryer.
1 2
To reduce the distance between body
sheet and wall install a 3 /
8
" elbow on
the gas pipe of the dryer.
1 ć gas pipe (
3 /
8
" male pipe thread)
2 ć 3 /
8
" elbow
Exhaust air connection
d WARNING d
1. To reduce the risk of fire, this dryer
MUST BE EXHAUSTED
OUTDOORS.
2. To reduce the risk of fire, do not
use ductwork longer than
recommended.
3. DO NOT use a plastic or
nonĆmetal duct with this dryer.
4. DO NOT use a duct smaller than 4
inches in diameter.
5. DO NOT use exhaust hoods with
magnetic latches.
6. DO NOT exhaust the dryer into a
chimney, furnace cold air duct,
attic, crawl space, or any other
ductwork used for venting.
7. DO NOT install a flexible duct in an
enclosed wall, ceiling or floor.
8. DO NOT crush or kink the duct.
9. Do clean and inspect the exhaust
system on a regular basis; at least
once a year.
10. The exhaust duct must terminate
in a manner to prevent back drafts
or entry of birds or other wildlife.
The Bosch dryer must be vented
outdoors. To prevent buildĆup of
moisture and accumulation of lint
indoors, as well as to maintain
maximum drying efficiency, it is
recommended that the dryer is vented
outdoors.
Exhaust air outlet on the dryer
The dryer is delivered with an exhaust
air outlet on the rear of the appliance.
To take account of the spatial
requirements and an existing exhaust
air system, the following connection
options are possible for the exhaust air
outlet:
-
on right side of the appliance,
- on the underside of the appliance.