cleaning. A sediment trap traps moisture and con- taminants. This keeps them from going into heater. If sediment trap is not installed or is installed improperly, heater may not run correctly.
IMPORTANT: Hold pressure regulator with wrench when connecting it to gas piping and/or fittings.
CHECKING GAS CONNECTIONS
WARNING: Test all gas piping and connections for leaks after installing or servicing. Correct all leaks at once.
WARNING: Never use an open flame to check for a gas leak. Apply a mixture of liquid soap and water to all joints. Bubbles forming show a leak. Correct all leaks at once.
PRESSURE TESTING GAS SUPPLY PIPING SYSTEM
Test pressure in Excess of ½ psig (3.5kPa)
1.Disconnect appliance with its appliance main gas valve (control valve) and equipment shutoff valve from gas supply piping system. Pres- sures in excess of ½ psig will damage heater regulator.
2.Cap off open end of gas pipe where equipment shutoff valve was connected.
3.Pressurize supply piping system by either using compressed air or opening main gas valve on or near gas meter.
4.Check all connections and joints in gas supply piping system. Apply mixture of liquid soap and water to gas joints. Bubbles forming show a leak.
5.Correct all leaks at once.
6.Depressurize and relieve pressure in supply piping system.
7.Reconnect heater and equipment shutoff valve to gas supply.
8.Reconnected fittings must be checked for leaks in next section.
Test Pressure Equal To or Less Than ½ psig (3.5 kPa)
1.Close equipment shutoff valve (see figure 13).
2.Pressurize supply piping system by either using compressed air or opening propane/LP supply valve.
3.Check all joints from the propane/LP supply valve to equipment shutoff valve (see figure 14). Apply mixture of liquid soap and water to gas joints. Bubbles forming show a leak.
4.Correct all leaks at once.
5.Depressurize and relieve pressure from supply piping system.
LIGHTING / OPERATING INSTRUCTIONS FOR USE WITH HOSE CONNECTED TO A REMOTE CYLINDER, MAXIMUM SIZE 20 LBS:
•This Heater may be used in a Recreational Enclosure or Temporary Construction Work Enclosure with a Remote Refillable Propane Cylinder ONLY when the Cylinder
is Located Outdoors and the Heater is Used with Mr. Heater Hose assembly supplied.
•DANGER: NEVER bring a refillable propane cylinder indoors. A fire or explosion can occur causing property damage, serious injury or death!
•Inspect the hose before each use of the heater. If there is excessive abrasion or wear, or the hose is cut, replace prior to using the heater with one of the Mr. Heater Hose assembly supplied (see parts list).
•The propane cylinder must include a listed overfilling protection device as well as a collar to protect the cylin- der valve.
•Heater must be in an upright position during operation.
•Make sure
•Screw hose connector into regulator on heater and screw connector on other end of hose into a regulated
•Open valve at
•Check all hose connections for leaks with soapy water at the threaded connection on heater where the hose connector screws into the regulator and at
Pressure Testing Heater Gas Connections:
1.Make sure that the heater supply piping sys- tem is connected and has been leak tested as described above.
2.Make sure control knob of heater is in OFF position.
3.Open equipment shutoff valve (see figure 13).
4.Open propane/LP supply valve.
5.Check all joints from equipment shutoff valve to control valve (see figure 14). Apply mixture of liquid soap and water to gas joints. Bubbles forming show a leak.
6.Correct all leaks at once.
7.Light heater (see Operating Your Heater, pages 11 and 12 for thermostat models or pages 9 and 10 for
8.Turn off heater (see To Turn OFF Gas to Appli- ance, page 12 for thermostat models and page 11 for
9.Replace lower front panel.
Unvented | 8 | Installation Instructions and Owner’s Manual |
