38 HVAC/R SPECIFICATIONS ACCURACY ASME Grade ±3/2/3%(±2% of range across middle half of scale) CASE SIZES 2" diameter CASE MATERIAL Steel, black painted MOUNTING STYLE Reducing Bell or Hex Style HOUSING MATERIAL Reducing Bell: Iron, black painted Hex Body: Steel, Zinc Dichromate Plated TUBE & SOCKET Copper alloy MOVEMENT Brass CONNECTION 34" FPT RANGES 15 to 100 psi DIAL STANDARD Single Scale psi DIAL COLOR Black markings on white POINTER Aluminum, black painted WINDOW Polycarbonate GAS TEST GAUGE • Hex or Bell Type mounting • 15 to100 Psi pressure ranges • Steel case and brass internals Use to pressure test all new gas installations for leaks and passing inspection codes. After installing Gas Test Gauge, the system is pressurized with air. Any leakage will be indicated by a pressure drop on the gauge. Typical applications include testing of gas and other pressure media. TYPE GAS TEST GAUGES Size 2" Case Material Steel Internals Copper Alloy Connection 34" FPT Scale Standard psi Mounting style Bell Type Hex Type 0 to 15 psi G33522 G33526 0 to 30 psi G33523 G33527 0 to 60 psi G33524 G33528 0 to 100 psi G33525 G33529 STANDARD RANGES & PART NUMBERS

39 HVAC/R SPECIFICATIONS ACCURACY ASME Grade B - ±3/2/3% (±2% of range across middle half of scale) CASE SIZE 212" diameter CASE MATERIAL Polished brass CASE STYLE LM – Lower Mount TUBE & SOCKET Copper Alloy MOVEMENT Brass with recalibrator CONNECTION 18 NPT RANGES 0-500 psi, 30" Hg VAC to 120 psi retarded to 350 psi DIAL STANDARD psi with corresponding temperature scales DIAL COLOR Black markings on white with red or blue temperature scales POINTER Aluminum, black painted WINDOW Beveled glass SERVICEMAN’S TEST GAUGE • Recalibrator and Restrictor Standard • Heavy Duty Brass Case • Clam Shell...

40 HVAC/R Gauges MANIFOLD GAUGE • Recalibrator and Restrictor Standard • Color Coded Cases, “Reds” & “Blues” • Overpressure Protection to 350 psi These gauges are designed for the pressure measurement of refrigeration systems. All dials are furnished with corresponding temperature scales for the various refrigerants. Dials feature R-12, R-22, and R-502. Standard connections are 18 NPT lower mount with your choice of red or blue case. Marsh Manifold Gauges are used in refrigeration applications for testing, servicing, and recharging AC and R Systems. TYPE MANIFOLD GAUGES Size 212" Case Material...

41 HVAC/R Gauges SPECIFICATIONS ACCURACY ASME Grade B – ±3/2/3% (±2% of range across middle half of scale) CASE SIZES 63mm and 312" diameter CASE MATERIAL 304 Stainless steel CASE STYLE LM – Lower Mount TUBE & SOCKET Stainless steel MOVEMENT Brass CONNECTION 14 NPT RANGES Compound 30" Hg Vac to 150 psi or 30" Hg Vac to 300 psi DIAL STANDARD Single scale psi with corresponding Ammonia temperature scales DIAL COLOR Black markings on white POINTER Aluminum, black painted WINDOW Polycarbonate RESTRICTORS Standard PACKAGING Optional clam shell packed gauges are on 412" X 658" cards, prepunched for...

42 HVAC/R Gauges NOTE: Items are available on special order. However, minimums and lead times apply. Consult factory. REFRIGERATION GAUGE • Color Coded Dial • Adjustable Pointer Standard Marsh Refrigeration Gauges are sturdily constructed and tested to give long, continuous, accurate service. In addition to the standard pressure or compound scale, dials also show the corresponding temperature scales for R-12, R-22, and R-502, in the various combinations shown in the chart below. Dial markings are sharp, clear and easy to read. Marsh Instruments Refrigeration Gauges are designed specifically for...

43 HVAC/R Gauges CONTRACTOR’S GAUGE • 412" Dial • Polished Stainless Steel Case • Adjustable Pointer • 1% Accuracy Marsh Instruments Contractor’s HVAC Service Gauge is a newly redesigned gauge with a long-life movement to meet the needs of contractors in air conditioning, heating, plumbing and refrigeration. This rugged and reliable gauge is economically priced and offers many features normally found on more expensive gauges such as adjustable pointer, acrylic lens and polished stainless steel case. Marsh Instruments Contractor’s Gauges are designed for use on plumbing and HVAC equipment. SPECIFICATIONS...

44 HVAC/R Gauges SPECIFICATIONS ACCURACY 312" ASME Grade B – ±3/2/3% (2% of range across middle half of scale) 412" ASME Grade A – ±2/1/2% (1% of range across middle half of scale) CASE SIZE 312" and 412" diameter CASE MATERIAL 312": Steel, black painted 412": Aluminum back flange case, black painted CASE STYLE LM – Lower Mount TUBE & SOCKET Copper alloy MOVEMENT 312": Brass 412": Stainless steel CONNECTION 14 NPT RANGES Dual Scale 15 to 300 psi and 300 to 690 ft. H20 DIAL STANDARD psi, ft. H2O and metric DIAL COLOR Black markings on white POINTER Aluminum, black painted with red set hand WINDOW...