Thread)3-1/4” Type “J” Thermocouple Ungrounded Junction Chromalox® DIVISION 4 SECTION GCHIS-CSALESREFERENCEDATESERVICE REFERENCEInstallation InstructionsandRENEWAL PARTS IDENTIFICATIONPE433-3161-562803-001NOVEMBER, 1998(Supersedes PE433-2) GCHIS-C Circulation Heater For Gas Heating Model Dimensions (In.) E1 E2 kW Volts CKT PH A B C GCHIS-CO5 GCHIS-CO5E2 0.5 120 1 1 14 8 4 GCHIS-CO5 GCHIS-CO5E2 0.5 240 1 1 14 8 4 GCHIS-C10 GCHIS-C10E2 1.0 120 1 1 20 14 10 GCHIS-C10 GCHIS-C10E2 1.0 240 1 1 20 14 1

Stud Hole Diameter* CBH-1815 120 1150 18” 12” 0.553” 1-1/8” 6-7/8” 0.616 CBH-2415 120 1500 24” 18” 0.553” 1-1/8” 6-7/8” 0.616 CBH-3025 120 2250 30” 24” 0.553” 1-1/8” 6-7/8” 0.616 CBH-3025 240 2250 30” 24” 0.553” 1-1/8” 6-7/8” 0.616 CBH-3625 120 2600 36” 30” 0.553” 1-1/8” 6-7/8” 0.616 CBH-3625 240 2600 36” 30” 0.553” 1-1/8” 6-7/8” 0.616 CBH-1816 120 1200 18” 12” 0.660” 1-1/8” 6-7/8” 0.735 CBH-2416 120 1700 24” 18” 0.660” 1-1/8” 6-7/8” 0.735 CBH-3026 120 2300 30” 24” 0.660” 1-1/8” 6-7/8” 0.735 CBH

Failure to comply can result in explosion or fire. Hazardous area terminal housings are available, consult your Local Chromalox representative for details. The NWHMT series is a general-purpose water circulation heater intended for use indoors. The three Copper sheathed tubular elements are centered in a 21/ 2” diameter galvanized heating chamber and sealed in a removable screwplug. The assembly is surrounded by 1-1/2” insulation and sheet metal jacket. Depending upon the specifications, the NWH

Dimensions (in.) A B C GCHMT-30105 120 1 1 15 20-1/2 9-3/8 — GCHMT-3105 240 or 480 1 or 3 23 GCHMT-30305 240 or 480 1 or 3 3 15 30-5/8 22-1/2 16-1/2GCHMT-3305 23 GCHMT-30505 240 or 480 1 or 3 5 15 56-3/8 45-1/4 39-1/4 GCHMT-3505 23 30-5/8 22-1/2 16-1/2 GCHMT-30755 240 or 480 1 or 3 7.5 15 67-1/8 56 50 GCHMT-3075 23 56-3/8 45-1/4 39-1/4 GCHMT-30905 240 or 480 1 or 3 9 15 78-1/8 67 61 GCHMT-3905 23 56-7/8 45-1/4 39-1/4 WARNING: Safe operating conditions depend on operating pressure, mass velocity

gases, liquids or other combustible atmospheres are present as defined in the National Electrical Code. Failure to comply can result in explosion or fire. 19” Min. 6” to floor min. 5” 4” B B B A 1” min. 10” 16” 3” Specifications Model Voltage Wattage Phase Dimensions (In.) A B ICH-18025 120, 208, 240, 277 250 1 18 12 ICH-28050 500 1 28 22 ICH-38075 750 1 38 16 ICH-45100 1000 1 48 14 ICH-60125 1250 1 60 18 ICH-72100 1500 1 72 161/2 © 2010 Chromalox, Inc. MOUNTING WARNING: Hazard of Electric Shock

Where the consequences of failure may be severe, back-up controls are essential. Although the safety of the installation is the responsibility of the user, Chromalox will be glad to make equipment recommendations. MAINTENANCE WARNING: Hazard of Severe Shock. Disconnect all which will incinerate causing smoking and consequent wall power to heater before servicing or replacing discoloration. heaters. 2. If heater is located in areas of heavy traffic, furnish suitable heater guard (wall mounted pip

Any damage claims hazardous atmospheres where flammable vapors, should be entered immediately with the carrier. gases, liquids or other combustible atmospheres are present as defined in the National Electrical Code. Failure to comply can result in explosion or fire. 19” Min. 6” to floor min. 5” 4” B B B A 1” min. 10” 16” 3” Specifications Model Voltage Wattage Phase Dimensions (In.) A B ICH-18025 120, 208, 240, 277 250 1 18 12 ICH-28050 500 1 28 22 ICH-38075 750 1 38 16 ICH-45100 1000 1 48 14 IC

Use special magnetic bits provided. (Use standard 5/16 socket or variable speed drill when attaching screws. 8. Wire power lines to pigtail leads marked L1 and L2. Connect ground wire to the green pigtail lead. 9. Adjust thermostat to the desired setting. Install top access cover with (4) 10-32x1/2 tamper proof screws using spanner tool bits provided. WIRING WARNING: Hazard of Electrical Shock. Any installation involving electric heaters must be grounded to earth to eliminate shock hazard. Note: