Maintenance
4-22
Algas-SDI Operation and Maintenance Manual
– P/N - 52642
Adjusting burner input pressure
1. Close the supply valve to the burner supply regulator and vent lines.
2.
Using a 3/8” FNPT barb fitting and hose, connect a 0-30” manometer (or
similar pressure indicating device) to the pressure tap port at the outlet of the
thermostat. You will have to remove the 3/8” plug. If the vaporizer does not
come equipped with the port at the outlet of the thermostat then connect the
manometer to drip leg ahead of the thermostat.
3. Open the supply valve to the burner supply regulator.
4. Turn the reigniter
switch “ON”. Establish pilot by turning temperature control
dial to "RUN" position. Push down the "PILOT" button while igniting pilot
(hold button down for 30 - 60 seconds). After pilot flame is established,
rotate the temperature control dial counterclockwise. The main burner(s)
should now engage.
5. With the main burner operating, check the gas pressure at the thermostat
outlet pressure port using a manometer (see No. 2 above). For the required
burner input pressure for each model refer to page 1-3. To adjust the
pressure, remove the cap on the burner supply regulator (See Figure 12) and
turn the adjustment screw clockwise with a standard screwdriver to increase
the pressure. Return burner supply regulator cap when complete.
6. Close the supply valve to the burner supply regulator and
wait until the pilot
and main burner have extinguished
. Turn the temperature control dial to
“OFF" position. Remove the manometer and fittings.
Replace all plugs
before proceeding and perform a leak test.
Figure 12
–
Adjusting burner input pressure
BURNER SUPPLY
REGULATOR ADJUSTMENT
SCREW
PRESSURE PORT
– INSERT MANOMETER
HERE
ROTATE GAS CONTROL DIAL
COUNTER-CLOCKWISE FOR
BURNER TO ENGAGE
ALTERNATE PRESSURE
PORT INSERT
MANOMETER HERE
Содержание Direct Fired 120/60H
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Страница 42: ...APPENDIX A TECHNICAL INFORMATION...
Страница 43: ...Figure 13 40 40H Vaporizer Replacement Parts 1 2 3 4 5 6 10 8 9 11 12 13 14 15 16 24...
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