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manual abstract
B. Carefully screw POL nut directly into bulk propane cylinder, counterclockwise. REMEMBER – This is a left hand thread – see Figure 1. Make sure the heater is in a vertical upright position and directed away from the collar of the bulk tank. Use a 7/8” open end wrench to tighten the POL fitting – left hand thread – see Fig. 1. 6. LIGHTING INSTRUCTIONS A. Before attempting to light the heater, check all fittings and connections with a soap solution. NEVER USE A MATCH TO CHECK FOR LEAKS. Should a gas leak occur, do not attempt to repair or use heater. Return the heater to your dealer or the address given on back page. B. Fuel – This heater must be used only with a vapor withdrawal LP gas bulk cylinder. THE BULK TANK MUST BE EQUIPPED WITH A STANDARD POL VALVE. WARNING: USE HD.5 PROPANE GAS ONLY. DO NOT USE ANY OTHER TYPE FUEL. SEE YOUR PROPANE DEALER IF YOU HAVE ANY QUESTIONS REGARDING FUEL. C. Turn the heater’s “Hi-Med-Lo-Off” regulator know to “Med” (counterclockwise). D. To light a burner, MH42T Model, place a lit match across the mesh screen where you see “light here” on reflector. (See Fig. 4) THEN push in valve button on Safety Shutoff Valve. After the burner is lit, continue to hold valve button in for 30 seconds, then release the button slowly. CAUTION: DO NOT PUSH IN VALVE BUTTON BEFORE INSERTING LIT MATCH. Repeat step “D” for each burner. E. Adjust heat output by turning knob to desired position. F. If burner does not light within 30 seconds, turn the heater’s regulator knob to “off” (clockwise) and allow at least five minutes for gas to dissipate before attempting to relight. G. NOTE: Should the orifice become clogged as indicated by low volume of gas when operating on “Hi” with a full cylinder, or should the heater fail to operate properly for any reason, return the heater to the dealer or the address given on back page for repair or replacement. DO NOT ATTEMPT TO REPAIR OR TAMPER WITH HEATER. H. COOKING: DO NOT USE THIS HEATER FOR COOKING. Figure 4 Mr. Heater | Gas-Fired Infra-Red Portable Heater 5 Operating Instructions and Owner’s Manual Mr. Heater • Gas-Fired Infra-Red Portable Heater • Model #MH42T Figure 5 NOTE: WHEN LIGHTING BURNER WITH A MATCH OR TAPER, LIGHT AT SCREEN. (NOT AT ORIFICE) Mr. Heater • Gas-Fired Infra-Red Portable Heater • Model #MH42T Figure 5 NOTE: WHEN LIGHTING BURNER WITH A MATCH OR TAPER, LIGHT AT SCREEN. (NOT AT ORIFICE) REPLACEMENT PARTS LIST FOR HEATER MODEL MH42T FULLY ASSEMBLED WITH METAL GAS MANIFOLD REF.# ITEM# DESCRIPTION 1 73960 Manifold with safety shutoffs and orifices 2 F273117 12 inch thermocouple lead 3 73122 Plenum Assembly, Complete 4 F273164 Screen Assembly 5 73941 Bolt set (#10-32 x . Phillips HD Mach Screws) 6 F273606 Replacement Regulator with Soft Nose POL 7 73743 Reflector 8 73742 Wire Guard 9 75607 Metal Ring 10 73938 Collar Mounting Bracket Assembly 11 73658 Hose Assembly/Less Regulator (11” Long) 12 73213 Replacement Safety Shutoff with Orifice 13 75613 Locking Knob 14 73214 Bolt – .-20 with Seal Washer 15 73322 Plenum Assembly with Clip –Center Only Figure 6 ALL WARRANTY CLAIMS REQUIRE PROOF OF PURCHASE Mr. Heater | Gas-Fired Infra-Red Portable Heater 6 Operating Instructions and Owner’s Manual 7. SHUTDOWN AND STORAGE INSTRUCTIONS A. The bulk propane tank “on-off” valve should ALWAYS be completely turned “OFF” when the heater is not in use. B. When shutting off the heater, turn the regulator knob on the heater to “OFF” (clockwise). (See Figure 4) C. CAUTION: After turning unit off, heater will remain extremely hot. Allow at least 15 minutes for cooling before handling and storing. Detach heater from bulk tank before handling and storage. REMEMBER – POL fitting is a left-hand thread. D. HEATER STORAGE: Always remove the propane cylinder from the heater when not in use. Always store propane cylinders in a cool, well ventilated place away from any flame or heat and in a location not used for habitation. DO NOT STORE PROPANE TANK WITHIN 60 FT. OF OPEN FLAME OR HEAT. E. See Figure 6 for spare parts list. TROUBLE SHOOTING MR. HEATER APPLIANCE The chart assumes that the proper gas and gas pressure is available to the heater. The chart also assumes that the heater is used in accordance with Mr. Heater installation and operating instructions. PROBLEM POSSIBLE CAUSE SOLUTION Burners will not light Propane tank turned off Propane tank empty Heater regulator not turned on Safety Shutoff plunger not depressed Air in manifold or hose or propane tank Open tank valve Get tank filled Turn valve to medium position Depress S/S valve while lighting Purge air from unit Hear gas but burners will not light (hissing) Air in propane tank Defective regulator Partially plugged orifice Return tank to dealer to purge air Replace Clean or replace Burner lights, turns red but will not stay lit Thermocouple not secure Thermocouple out of position Defective thermocouple Safety shutoff defective Secure thermocouple Position tip 3/16” to 3/8” from screen Replace thermocouple Repl...