1 & 2 Class II - Groups E, F & G T3B - 165.C (329.F) Table A – Specifications Model kW Voltage and Phase Horiz. Air Discharge (Ft.) BTUH CFM Wt. (Lbs.) Overall Dimensions (In.) 5/8” UNC Tapped Mounting Hole Locations A B C D E CXH-A-03 3 208/240V-1 or 3O 480/575V-3O 28 10,236 700 127 19-1/8 23-7/8 21 3-1/2 13-5/8 CXH-A-05 5 208/240V-1 or 3O 480/575V-3O 28 17,060 700 127 19-1/8 23-7/8 21 3-1/2 13-5/8 CXH-A-07 7.5 208/240V-1 or 3O 480/575V-3O 32 25,590 840 133 19-1/8 23-7/8 21 3-1/2 13-5/8 CXH-A-1

Type UB-3502A, UB-4002A, UB-4502A, UB-5002A Forced-Air Heater Figure 1 Figure 2 (Wall Mounted) (Ceiling Mounted) Specifications – Table A Model Volts and Phase kW Horizontal Air Discharge Wt. (Lbs.) UB-3502A 240V, 550V, 575V, 600V (3o) 480V (1o or 3o) 35 54’ 210 UB-4002A 480V (1o or 3o) 550V, 575V, 600V (3o) 40 54’ 210 UB-4502A 480V (1o or 3o) 550V, 575V, 600V (3o) 45 54’ 210 UB-5002A 480V, 550V, 575V, 600V (3o) 50 54’ 210 IMPORTANT WARNING: Hazard of Electric Shock. Disconnect WARNING: Users

Part No. Cat. No. Cat. No. Volts Amps Phase Cycles RPM HP Type Vac Cap. 193-025776-001 HF2K007N 115 5.4 1 60 1625 1/3 040-025779-001 1270 Oil 370 5 MFD 193-025776-002 HF2K006N 230 2.54 1 60 1625 1/3 040-025779-002 1271 Oil 370 6 MFD 193-302120-011 P55YYBYV-887 460 0.9 3 60 1725 1/3 — — — — — 54 TRANSFORMERS Size Part Number V.A. Rating Voltages Primary Secondary Large4 315-052169-011 970 220, 230, 240, 440, 460, 480 110, 115, 120 315-052169-012 550, 575, 600 110, 115, 120 Small5 315-304252-001 4

DANGER: Hazard of Fire. 2. Do not operate heater in corrosive atmosphere conditions to A. Do not restrict air flow through heater by placing fabric or avoid destructive damage to heater. other obstructions in front of or behind the heater. Increased 3. Avoid operating heater in dusty environment which can foul discharge temperatures can discolor or ignite some heat heater fins to dissipate heat or impair motor ventilation leading sensitive combustible materials. to excessive operating temperatur

B. For ceiling heights of 12 feet or less, maximum mounting height is determined by use of ceiling mounting brackets offered with these heaters. Minimum spacing to ceiling is 14-1/4”. C. In either case the minimum mounting height is 7 feet from floor to bottom of heater. (See Figures 1 and 2.) 2. Spacing to adjacent walls A. Rear of case to back wall 11” minimum. B. Side of case to side wall 12” minimum. 3. If two or more units are operated in the same enclosed space, their discharges should be

Key to proper wiring diagram is the part number (P/N) of internal wiring diagram located on inside of the hinged cover of the terminal box. 4. Protection against overheating is provided by an internal automatic thermal cutout which opens the electric circuit if the normal air-flow is restricted or stopped. Cutout automatically energizes heater on removal of the obstruction. WIRING DIAGRAMS Figure 3 2 WIRING DIAGRAMS Figure 4 Figure 5 3 WIRING DIAGRAMS Figure 6 Figure 7 4 WIRING DIAGRAMS Figure 8

1. Connect heater according to the voltage and frequency specified on the nameplate and using the appropriate wiring diagram (Figures 3 thru 11). Note: Be sure to check the voltage rating of the fan motor since it is not necessarily the same as the heater circuit. 2. If an external transformer is used to step down the voltage for operating the fan motor, use appropriate wiring diagram (Figures 8 thru 11). 3. Heaters are not provided with a control switch and should be controlled by externally mo

† These models can be field changed from single phase to three phase or three phase to single phase. © 2010 Chromalox, Inc. IMPORTANT Failure to understand and follow these installation instructions and the “WARNING” notes therein may result in serious personal injury from electrical shock, or from the heater failing due to faulty installation. FIRE/EXPLOSION HAZARD. This heater is not intended for use in hazardous atmospheres where flammable vapors, gases, liquids or other combustible atmospher

5. Rough-in wiring to heater. See Table 2 for line amperes, recommended wire size and conduit size. 6. Wire heater per wiring diagram supplied with this instruction sheet. Note: Power relay(s) are provided as standard on all heaters. WARNING: Prior to operating the heater, verify that the fan hub setscrews are tightened and the push-on clip is secured to assure that the fan blade is securely fastened to the motor shaft. 7. Carefully inspect the completed installation. Rotate the fan blade by han

MODEL NUMBER DESCRIPTION TABLE 2 CAF-6 B 2 05 11 01 A1 or Refer to CCAS-8 Code Control Options (Factory Installed) Wiring Diagram 00 = No Optional Control A A1 = Built-in SP tamperproof thermostat 120 - 277V C A2 = Built-in DP tamperproof thermostat 120 - 277V E F1 = Built-in SP adjustable thermostat 120 - 277V C F2 = Built-in DP adjustable thermostat 120 - 277V E A4 = Built-in 24V low voltage relay 120 - 277V D A5 = Built-in 24V low voltage relay and transformer 120 - 277V F A8 = Built-in disco