Gas Pressure Checks; Materials Required - L.B.White 320 Instrucciones Y Manual Del Propietario

24
Vertical Convection Heaters

GAS PRESSURE CHECKS

■ This procedure is to be done once a year prior to the
heating season, anytime the heater is moved from one job
location to the next, or after servicing the heater.

MATERIALS REQUIRED

See the list of materials required as follows, depending on
the heater to be checked. Secure these materials through
local purchase.
Quantity Description
1 High Pressure Gas Gauge capable of reading
up to 30 PSIG (Use for Workman 225,
Norseman 200, and Norseman 250 heaters)
OR
Low pressure gauge capable of reading up to
35 inches water column (Use for Workman 100
Plus natural gas ONLY)
1 1/8 in. black iron street ell. (Required for
Workman 225 Plus heaters ONLY)
1 1/4 in. x 2 in. pipe nipple (Required for
Norseman 250 heaters ONLY.)
1 1/4 in. black iron tee (Required for
Norseman 250 heaters ONLY)
A. PREPARATION- ALL HEATERS
1. Close fuel supply valve at propane gas supply
container.
2. Allow heater to burn off gas remaining in it's gas
supply lin e.
3. Allow heater to cool.
4. Workman 225 Plus: Position the variable heat valve
to its lowest setting.
Norseman 200 Plus and Norseman 250: Close
the manual main burner valve.
Workman 100 Plus Natural Gas: Position the
knob on the safety control valve to OFF.
B. GAUGE INSTALLATION
Workman 225 Plus:
1. Using an wrench, remove the cap from the safety control
valve as shown in Fig. 28.
Owner's Manual • Workman & Norseman
FIG. 28
CAP
2. Install a 1/8 in. street ell and pressure gauge at this
point. See Fig. 29.
FIG. 29
Norseman 200 Plus:
1. Using a 3/16 in. allen wrench, remove the hex plug
from valve inlet. See Fig. 30.
FIG. 30
1/8 IN
STREET
ELL
PLUG