REZNOR UBX Blower type Unit Heaters User Manual

REZNOR UBX Blower type Unit Heaters

BLOWER INLET AND BELT GUARD KIT INSTALLATION FOR

BLOWER-TYPE UNIT HEATERS

OPTIONS CD10 AND CD12 FOR MODEL UBX AND UBZ UNITS

• These guard options provide protection from the rotating belt drive and/or blower components.
• Option CD10 is designed for use on units with a belt-drive motor (unit sizes 150–400).
• Option CD12 is designed for use on units with a standard direct-drive motor (unit sizes 030–125).
• Refer to the installation manual provided with the unit for important safety information.

NOTE: The blower inlet guard and belt guard assemblies (see Figure 1) together are option CD10.
The blower inlet guard assembly when ordered separately is option CD12.

• Ensure that all components listed in Table 1 are available before beginning installation.

Table 1. Blower Inlet and Belt Guard Kit Components

Option

|

Component

|

Unit Size

030–125| 150–200|

225–400

Kit PN

114548

| 202316| 202317

Component PN

CD10

|

Blower inlet guard assembly

| —| 203079| 102475
Belt guard assembly| 193797|

193795

Green ground wire assembly, 10-inch|

202939

Screw, #10-16 × 1/2 long|

37661

CD12

| Blower inlet guard assembly| 102474| —

Screw, #10-16 × 1/2 long

|

37661

DO NOT DESTROY. PLEASE READ CAREFULLY. KEEP IN A SAFE PLACE FOR FUTURE REFERENCE.

INSTALLATION

Install the blower inlet and belt guards as follows:

1. If heater is installed, turn OFF gas and electric power.

2. Install blower inlet guard (see Figure 2):
   a. Position guard and mark mounting holes.
   b. Drill 1/8-inch diameter mounting holes.
   c. Secure guard using screws from kit.
   

3. If installing option CD12, proceed to step 5. If installing option CD10, proceed to step

4. Install belt guard assembly:
   a. Slide back of guard over motor pulley.
   b. Position guard in central location so that no part of pulley or belt rubs on guard and mark mounting holes on blower housing.
   c. Drill 1/8-inch diameter mounting holes
   CAUTION
   Ensure that metal screen on belt guard assembly is grounded to blower housing.
   ** d. Remove one bolt and nut that secures metal screen on belt guard assembly. Connect one end of 10-inch green ground wire from kit to bolt and re-install bolt and nut. Connect other end of ground wire to screw to be installed in step 4e.
   e. Secure belt guard assembly using screws from kit, ensuring that one screw grounds metal screen to blower housing.
   NOTE: It may be necessary to reposition the motor BX cable, which should be outside of the belt guard.
   **

5. Turn ON gas and electric power.

6. Light heater in accordance with lighting instructions.

7. Check for proper operation
   

Customer Support

Specifications and illustrations subject to change without notice or incurring obligations.
Latest version of this manual is available atwww.reznorhvac.com.
©2022 Nortek Global HVAC LLC, O’Fallon, MO. All rights reserved.
UBX-UBZ-CD10-CD12 (09-22) 1042292-A

Documents / Resources

| REZNOR UBX Blower type Unit Heaters [pdf] User Manual
UBX Blower type Unit Heaters, UBX, Blower type Unit Heaters, type Unit Heaters, Unit Heaters, Heaters
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References

• Reznor HVAC

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