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Version B - For Reduction G016.J
®
Dayton Operating Instructions and Parts Manual
5
Model 3VH20
Operation
Review and
understand the
warnings in the General Safety Infor-
mation section. They are needed to
safely operate this heater. Follow all
local codes when using this heater.
TO START HEATER
1. Follow all installation, ventilation, and
safety information.
2. Locate heater on stable and level
surface. Make sure strong drafts do
not blow on heater.
3. Make sure regulator is set to OFF by
turning control knob clockwise.
4. Open propane supply valve on propane
tank(s) slowly.
5. Turn regulator knob counterclockwise
to “HI”.
6. Push in and hold automatic control
valve button (See Figure 5). Press and
release piezo ignitor button (See Figure
5). Keep pressing piezo ignitor button
until the burner lights. Hold control
knob down for a maximim of 10
seconds while attempting ignition. If
heater does not ignite, release control
knob and wait 3 minutes before
attempting reignition.
Piezo
Ignitor
Automatic Control
Valve Button
Figure 5 - Automatic Control Valve Button
and Piezo Ignitor Button Locations
NOTE: Keep hands and face away from
outlet (around top of shell) of heater while
attempting to start heater.
7. After ignition, hold automatic control
valve button down for approximately
30 seconds. This activates the auto-
matic control system.
8. When burner remains lit, set heater at the
desired heat level by turning the regulator
knob counterclockwise. If burner goes
out, turn off gas. Turn regulator knob
fully clockwise to OFF. Check fuel supply.
If adequate fuel is available, restart heater
beginning at Step #1.
Figure 6 - Heater Regulator
TO STOP HEATER
1. Tightly close propane supply valve by
turning clockwise. Allow heater to
burn remaining fuel in the hose.
2. Turn regulator knob to the OFF
position. Wait 20 minutes for the
heater to cool before handling heater.
3. Always remove the gas supply hose
from the heater and the propane tank
after each use.
TO RESTART HEATER
1. Wait five minutes after stopping
heater.
2. Restart heater by following steps under
To Start Heater.
Storage
Disconnect heater
from propane
supply tank(s).
1. Do not store heater while attached to
propane tank. Remove the gas supply
hose from the propane tank by turning
the fuel gas connector nut clockwise.
2. Store propane tank(s) in safe manner.
Refer to Chapter 5 of Standard for
Storage and Handling of Liquified
Petroleum Gases, ANSI/NFPA 58.
Follow all local codes. Always store
propane tanks outdoors. Never store
propane tank in an enclosed area.
3. Place plastic cover caps over brass
fittings on inlet connector and hose/
regulator assembly.
4. Store in a dry, clean, and safe place.
Maintenance
Never attempt to
service heater
while it is connected to propane
supply, operating, or hot. Severe burns
can occur.
1. Keep heater clean.
2. Inspect heater before each use. Check
connections for leaks. Apply mixture of
liquid soap and water to connections.
Bubbles forming show a leak that must
be corrected. Correct all leaks at once.
3. Inspect hose/regulator assembly before
each use. If hose is highly worn or cut,
replace.
4. Have heater inspected yearly by a
qualified service person.
Heat Settings