25M SERIES GAS CONTROLS PRODUCT INFORMATION The 25M series gas control is a compact, multifunctional valve, with a direct-acting regulator ideal for use in pilot valve applications, thru-the wall heaters, RV heaters, gas clothes dryers, hearth products, radiant heat systems, water heaters, cooking applications, agricultural heaters/ dryers, or other high-efficiency equipment. The 25M valve, provided with a straightin inlet, has various outlet configurations that, when coupled with the various pipe sizes available, make for easy adaptation to a given application. Optional features, such as the inlet pressure tap, increase the flexibility in adapting this valve. Available configurations include: Single Solenoid (for pilot valve applications) Dual Solenoid, Valves in Series (for applications requiring redundancy) Dual Solenoid, Valves Independent (for dual burner applications) Split-Coil (for use with Hot Surface Ignition systems) Two-Stage (for applications requiring both high-fire and low-fire settings)

general specifications Standard Features Appliance Manifold X X Inlet Screen [protected from pipe damage] X X Outlet Screen [protected from pipe damage] X X Field Adjustable Regulator X X Replaceable Operating coils without interrupting gas flow X Ambient Temperature Rating: 32° to 155T X Ambient Temperature Rating: 32° to 175T X X Straight Through Outlet [offset] X 3/16" Male Tab Type Terminals Optional Features Appliance Manifold X Orifice Holder Outlet X X Right/Left Angle Outlets X Dual Outlets [Right-Angle-Left AND Right-Angle-Right or Straight Through X Natural to LP Regulator Selector...

general specifications Current Requirements OPERATOR(S) REQUIREMENT (AMPS) Voltage Frequency Single Coil Dual Coil, Parallel (total draw) SPLIT-COIL VERSIONS Model # Rated Volts SPLIT-COIL 25M01A 1" P Capacity .D. 40K 2" P Capacity .D. 60K Range of Regulation 5 to 55K Ambient Temperature 32˚ to 155˚ F Rating Outlet Pressure 2.8" to 4.0" Adjustment Range Operating Mode Start Running Start Glo-Bar On, Sensor Closed Glo-Bar Off, Sensor Open Glo-Bar On, Sensor Closed Glo-Bar Off, Sensor Open DUAL SOLENOID REDUNDANT DUAL SOLENOID INDEPENDENT SINGLE SOLENOID HIGH CAPACITY * 60K with both solenoids...

general specifications Regulator Operation The 25M series gas valve utilizes a direct acting regulator construction to maintain proper outlet gas pressure for fluctuating inlet pressures. (Refer to Fig. 1) 1) Calibration The regulator is adjusted at the factory to give the outlet pressure to an orifice as required by the customer (This is referred to as the set point). The outlet pressure (B) and the orifice are selected by the customer to give the desired flow rate of gas necesary for his application. This adjustment is made at an inlet pressure (A) of 7.0" W.C. for natural gas and 14.0" for...

general specifications Outline and Mounting Dimensions (cont.) Two Stage Model MAIN COIL, 12 V.D.C., 3/16 QUICK DISCONNECT TERMINALS (LABELED "1" AND "2") 2 MOUNTING HOLES CORED FOR 8-32 SELF-TAPPING SCREWS 7/16 DEEP. REDUNDANT COIL, 12 V.D.C., 3/16 QUICK DISCONNECT TERMINALS (LABELED "3" AND "4") CONTROL LABEL THIS SURFACE VENT / LEAK LIMITER ORIFICE GRIP HERE 2ND STAGE COIL, 12 V.D.C., 3/16 QUICK DISCONNECT TERMINALS (LABELED "5" AND "6") Typical Wiring Diagrams TYPICAL WIRING DIAGRAM FOR MODEL 25M APPLIANCE VALVE TYPICAL WIRING DIAGRAM FOR MODEL 25M MANIFOLD VALVE Cross-Sectional Views Figure...

general specifications Cross-Sectional Views (cont.) Figure 2 - CROSS-SECTIONAL VIEW OF 25M MANIFOLD VALVE 25M Performance Curves Natural Gas (1000 BTU/FT3, .64 SP. GR.) 2.0 4.5 Set Point: Q = 23.4 KBTU/hr Pout = 3.5" W.C. 10.5 Set Point: Q = 37.7 KBTU/hr Pout = 11.0" W.C. 25M GAS CONTROL PRODUCT INFORMATION R-4080

features Flip-Flop Convertible Regulator Conversion from LP to NAT (or vice-versa) accomplished by inverting the position of the conversion screw and replacing the orifice. No further adjustment is required (convertible feature is CSA Int’l approved as a fixed-adjust convertible regulator). No provision for field adjustment as special tool is required. “Flip-Flop” Conversion Screw (LP Position Shown) Nylon ADJ Screw (NAT Setting) Shaft Spring 25M GAS CONTROL PRODUCT INFORMATION R-4080

models available Each valve is uniquely defined by a model number succeeded by the type number as follows: BASIC MODEL NUMBER SERIES 01 – Split Coil Model (For use with Power-Vented Si Carbide Ignition Systems), 32˚-175˚ F TYPE NUMBER CODING Number Pipe Size (inlet x outlet) 02 – Redundant Solenoids (Valves in Series), 32˚-175˚F 03 – Independently Operating Valves (Dual Burner Applications), 32˚-175˚F Special Fittings 3/8" x 3/8" Inverted Flare 3/8" x 1/4" Compression Fitting 11 – Same as 01 except 50 mbar rating 12 – Same as 02 except -40˚-175˚ F rating 13 – Same as 03 except convertible regulator,...