Reznor CD1 User manual

Revision: CP-UB-UD-UEZ-VL (03-21) 1036173-0

VERTICAL LOUVER KIT INSTALLATION FOR UNIT HEATERS

Supersedes: — (Original Version)

OPTION CD1 FOR MODELS UBX, UBZ, UDX, UDZ, AND UEZ

Vertical louvers are designed to direct discharge air to provide a wider throw pattern. This vertical louver option

applies to separated-combustion unit heater models UBX, UBZ, UDX, UDZ, and UEZ. Ensure that all components

listed in Table 1 are available before beginning installation.

⚠ DANGER ⚠

• Improper installation, adjustment, alteration, service, or maintenance can cause property

damage, injury, or death. Read the installation, operation, and maintenance instructions

thoroughly before installing or servicing this equipment.

• Installation should be done by a qualiﬁed agency in accordance with these instructions and

in compliance with all codes and requirements of authorities having jurisdiction.

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

Table 1. Option CD1 Kit Components

Component

Unit Size (UBX, UBZ, UDX, UDZ) Unit Size (UEZ)

030, 045 060, 075 100, 125 150, 175, 200 225, 250 300, 350, 400 130, 180 260, 310

PN (Quantity)

Kit package 1036298 (1) 1036299 (1) 1036300 (1) 1036301 (1) 1036302 (1) 1036303 (1) 1036304 (1) 1036303 (1)

Frame, louver 1028413 (1) 1028433 (1) 1028443 (1) 1033695 (1) 1033715 (1) 1033728 (1) 1033902 (1) 1033728 (1)

Louver 1028418 (5) 1028434 (5) 1028441 (5) 1033904 (8) 1033961 (8) 1033730 (8) 1033904 (8) 1033730 (8)

Spring, compression 195046 (5) 195046 (8) 195046 (8)

INSTALLATION

Install the vertical louver kit as follows (see Figure 1):

1. If heater is installed, turn OFF gas and electric power. Allow time for louvers to cool before proceeding.

2. Remove each horizontal louver by pushing louver toward spring to release louver.

3. Remove door on right side of unit to access screws that secure face plate assembly (see Figure 1) to front of

unit. Remove screws and remove face plate assembly.

4. In face plate opening for louver frame, remove screws from face plate.

Figure 1. Typical Face Plate Assembly and Louver Frame

FACE PLATE ASSEMBLY

FACE PLATE

LOUVER FRAME

Speciﬁcations and illustrations subject to change without notice or incurring obligations.

CP-UB-UD-UEZ-VL (03-21) 1036173-0

INSTALLATION—CONTINUED

5. Position louver frame in face plate so that holes align and secure frame through face plate to face plate assembly

using screws removed in step 4.

6. Install face plate assembly and secure to front of unit using screws removed in step 3. Replace door on right

side of unit.

NOTE: Before installing the louvers, note the louver curve and determine how the louvers should

be positioned to provide the optimal throw pattern. Depending on where the heater is installed

and on the desired airﬂow direction, the louvers may be installed with their curves all in the same

direction (either way) or the right half one way and the left the other.

7. Install vertical louvers in louver frame:

a. On notched end of louver, slide compression spring over tab.

NOTE: Depending on the desired throw pattern, the end of the louver with the spring can go either

into the frame top or bottom.

b. With wider louver blade facing in toward heat exchanger, push tab with compression spring into hole in top

or bottom louver frame (see Figure 2)—spring compresses. Insert tab on other end of louver into opposite

louver frame. For left airﬂow, compress spring into top louver frame. For right airﬂow, compress spring into

bottom louver frame.

Figure 2. Louver Installation

c. Install all remaining louvers in accordance with steps 7a and 7b.

8. Install horizontal louvers removed in step 2.

⚠ WARNING ⚠

To avoid burns, adjust louvers while heater is not in operation. If louvers must be adjusted while

heater is operating, wear protective gloves.

9. Adjust horizontal and vertical louvers to provide desired throw pattern.

10. Turn ON gas and electric power.

11. Light heater in accordance with lighting instructions.

12. Check for proper operation.

COMPRESSION

SPRING

COMPRESSION

SPRING

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