Desa VH Series Stove"VICTOR HEARTH" Owner's Operation And Installation Manual page 17

instaLLation
Continued
Installation Items Needed
Before installing stove and burner system,
make sure you have the items listed below.
• external regulator (supplied by installer)
• piping (check local codes)
• sealant (resistant to propane/LP gas)
• equipment shutoff valve *
• test gauge connection *
• sediment trap
• tee joint
• pipe wrench
• approved flexible gas line with gas con-
nector (if allowed by local codes) (not
provided)
* A CSA design-certified equipment shutoff
valve with 1/8" NPT tap is an acceptable al-
ternative to test gauge connection. Purchase
the CSA design-certified equipment shutoff
valve from your dealer.
For propane/LP connections only, the in-
staller must supply an external regulator.
The external regulator will reduce incoming
gas pressure. You must reduce incoming gas
pressure to between 11" and 14" of water. If
you do not reduce incoming gas pressure,
heater regulator damage could occur. Install
external regulator with the vent pointing down
as shown in Figure 27. Pointing the vent down
protects it from freezing rain or sleet.
CAUTION: Use only new,
black iron or steel pipe. Inter-
nally-tinned copper tubing may
be used in certain areas. Check
your local codes. Use pipe of
1/2" diameter or greater to allow
proper gas volume to burner sys-
tem. If pipe is too small, undue
loss of volume will occur.
Installation must include an equipment shutoff
valve, union, and plugged 1/8" NPT tap. Locate
NPT tap within reach for test gauge hook up.
NPT tap must be upstream from burner system
(see Figure 28).
Check your building codes for any special
requirements for locating equipment shutoff
valve to stoves.
112127-01C
Apply pipe joint sealant lightly to male NPT
threads. This will prevent excess sealant from
going into pipe. Excess sealant in pipe could
result in clogged burner system valves.
sealant that is resistant to liquid
petroleum (LP) gas.
External
Regulator
Vent
Pointing
Down
Figure 27 - External Regulator with Vent
Pointing Down (Propane/LP Only)
CSA Design-Certified
Equipment Shutoff Valve
with 1/8" NPT Tap*
Approved
Flexible
Gas Line
* The CSA design-certified equipment shutoff
valve may be supplied with the appliance or
you can purchase it from your dealer.
www.desatech.com
WARNING: Use pipe joint
3" Minimum
Cap Pipe
Nipple
Sediment Trap/Drip Leg
Figure 28 - Gas Connection
Propane/LP
Supply Tank
Natural - From
Gas Meter (5"
W.C. to 10.5"
W.C. Pressure )
LP - From
External
Regulator (11"
W.C. to 14"
W.C. Pressure)
Tee
Joint
17