Reznor CAUA Manual
Return air filter cabinet installation for gas-fired indoor heater
Hide thumbs
Also See for CAUA:
- Installation, operation and maintenance manual (64 pages) ,
- Manual (16 pages) ,
- Installation instructions manual (9 pages)
Table of Contents
Advertisement
Quick Links
RETURN AIR FILTER CABINET INSTALLATION FOR GAS-FIRED
INDOOR HEATER
OPTION CW4, CW5, CW6, CW7, CW8, CW9, CW10, CW11, CW12, CW13, CW14, CW15,
GENERAL INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Filters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
COMPONENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Cut Inlet Air Opening and Drill Mounting Holes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Cut Inlet Air Opening and Drill Mounting Holes-Continued. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
or Rear (Option CW7, CW11, or CW12) of Heater . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Install Filter Cabinet with Horizontal (Rear) Inlet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Install Filter Cabinet with Vertical (Top) Inlet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
(Option CW8, CW9, or CW10, Unit Size 150 or 200 Rear Inlet Only). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Installation of Bottom Return Air Filter Cabinet (Option CW13, CW14, CW15, or CW16) . . . . . . . . . . . . . . . . . 14
Heater Startup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
• These instructions are for installing an optional return air filter cabinet on a model CAUA heater.
• Refer to the installation manual provided with the heater for important safety information.
Filters
Where Assembled
Field
Factory
*
Field-supplied.
OR CW16 FOR MODEL CAUA
TABLE OF CONTENTS
GENERAL INFORMATION
Table 1. Return Air Filter Cabinet Filter Applicability
Option
CW4
CW5
CW6
CW7
CW8
CW9
CW10
CW11
CW12
CW13
CW14
CW15
CW16
Revision: CAUA-CW4-CW16 (04-22) 166162-A
Supersedes: I-CAUA-FC (04-15) PN166162R2
2-Inch Filter Type
Pleated
Permanent
*
Pleated or permanent
Pleated
Pleated
Permanent
*
Pleated or permanent
*
Pleated or permanent
Permanent
Disposable
Pleated
Permanent
*
Pleated or permanent
Unit Size
All
150, 200
All
Advertisement
Table of Contents
Subscribe to Our Youtube Channel
Related Manuals for Reznor CAUA
Summary of Contents for Reznor CAUA
-
Page 1: Table Of Contents
Heater Startup ................15 GENERAL INFORMATION • These instructions are for installing an optional return air filter cabinet on a model CAUA heater. • Refer to the installation manual provided with the heater for important safety information. -
Page 2: Dimensions
For 5,000 CFM on unit sizes 250 and 300, install either a cabinet on the rear of the heater or two side cabinets—one on each side. Dimensions OPTIONS CW4, CW5, CW6, CW7, CW11, AND CW12 OPTIONS CW8, CW9, AND CW10 Figure 1. Rear Inlet Cabinet Dimensions (Refer to Table CAUA-CW4-CW16 (04-22) 166162-A... - Page 3 34-11/16 (881) 32 (813) 250, 300 7, 11, 12 47-13/16 (1214) 45-1/8 (1143) 350, 400 4, 5, 6, 7, 11, 12 47-13/16 (1214) 45-1/8 (1143) Figure OPTIONS CW13, CW14, CW15, AND CW16 Figure 3. Bottom Inlet Cabinet Dimensions CAUA-CW4-CW16 (04-22) 166162-A...
-
Page 4: Components
Pleated, 2 × 16 × 16 104109 (4) — 104109 (6) — Filter Permanent, 2 × 12 × 16 — 104103 (4) — 104103 (6) Quantity is one (1) unless otherwise indicated. Filters for option CW11 are field-supplied 2-inch filters. CAUA-CW4-CW16 (04-22) 166162-A... - Page 5 194916 (4) 194917 (4) Filter rack Assembly, double 194914 (2) 194914 (2) 194915 (2) Blockoff Filter 195164 (3) 195164 (4) 195164 (4) Quantity is one (1) unless otherwise indicated. Filters for option CW16 are field-supplied 2-inch filters. CAUA-CW4-CW16 (04-22) 166162-A...
-
Page 6: Installation
CW4, CW5, CW6 CW8, CW9, CW10 (SIDE) CW8, CW9, CW10 (REAR) 150/200: 19" (483mm) 250/300: 16" (406mm) 350/400: 32" (813mm) 150/200: 34" (864mm) 250/300: 46" (1168mm) 350/400: 46" (1168mm) CW13, CW14, CW15, CW16 (BOTTOM) Figure 4. Embosses CAUA-CW4-CW16 (04-22) 166162-A... - Page 7 4. For option CW4, CW5, CW6, CW7, CW8, CW9, CW10, CW11, or CW12, mark and drill four 1/8-inch holes above inlet opening as shown in Figure CW4, CW5, CW6 CW7, CW11, CW12 CW8, CW9, CW10 Figure 5. Mounting Holes and Dimensions (Refer to Table CAUA-CW4-CW16 (04-22) 166162-A...
-
Page 8: Cut Inlet Air Opening And Drill Mounting Holes-Continued
INSTALLATION ON EITHER SIDE INSTALLATION ON BOTH SIDES (UNIT SIZES 250 AND 300) (ALL UNIT SIZES) Figure 6. Option CW4, CW5, and CW6 Configurations INSTALLATION ON REAR (ALL UNIT SIZES) Figure 7. Option CW7, CW11, and CW12 Configuration CAUA-CW4-CW16 (04-22) 166162-A... -
Page 9: Install Filter Cabinet With Horizontal (Rear) Inlet
Secure side panel to door channel installed in step 2a using sheet metal screws. Secure rear inlet panel to side panel and to bottom panel installed in step 2b using sheet metal screws. b. Secure filter channel assembly to rear inlet panel using sheet metal screws. CAUA-CW4-CW16 (04-22) 166162-A... - Page 10 5. Slide filters into filter rack channels. 6. Install door assembly on open end of filter cabinet and secure using sheet metal screws. Fasten door latches. 7. Connect ductwork (refer to Dimensions section for duct flange dimensions). CAUA-CW4-CW16 (04-22) 166162-A...
-
Page 11: Install Filter Cabinet With Vertical (Top) Inlet
Secure bottom rear panel to side panel and to bottom panel installed in step 1c using sheet metal screws. SHEET METAL SCREWS BOTTOM REAR PANEL SIDE PANEL SHEET METAL SCREWS Figure 13. Install Side and Bottom Rear Panels CAUA-CW4-CW16 (04-22) 166162-A... -
Page 12: Installation Of Return Air Filter Cabinet On Rear Or Side Of Heater (Option Cw8, Cw9, Or Cw10, Unit Size 150 Or 200 Rear Inlet Only)
15. Return air filter cabinet is shaded gray. Refer to Table 7 See possible configurations shown in for option package components. INSTALLATION ON EITHER SIDE INSTALLATION ON REAR (UNIT SIZES 150 AND 200) (UNIT SIZES 150 AND 200) Figure 15. Option CW8, CW9, and CW10 Configurations CAUA-CW4-CW16 (04-22) 166162-A... - Page 13 Remove existing screws above cutout area, position top panel and filter support as shown, and secure panel and support to heater cabinet using existing screws. b. Position filter support channel (channel down) as shown and secure to filter support using sheet metal screws. CAUA-CW4-CW16 (04-22) 166162-A...
-
Page 14: Installation Of Bottom Return Air Filter Cabinet (Option Cw13, Cw14, Cw15, Or Cw16)
2. Install heater, setting it on filter cabinet, which is designed so that there is no mechanical connection between cabinet and heater. Figure 3. Connect return air duct to duct flange on bottom of filter cabinet. Duct opening dimensions are shown in Table and listed in CAUA-CW4-CW16 (04-22) 166162-A... -
Page 15: Heater Startup
350, 400 Dimension Inches (mm) 25-1/2 (648) 37-1/2 (953) 32 (813) 46 (1168) Figure Heater Startup When heater and ductwork installation is complete, turn ON electric power and gas, start up heater, and check for proper operation. CAUA-CW4-CW16 (04-22) 166162-A... - Page 16 Specifications and illustrations subject to change without notice or incurring obligations. Latest version of this manual is available at www.reznorhvac.com. ©2022 Nortek Global HVAC LLC, O’Fallon, MO. All rights reserved. CAUA-CW4-CW16 (04-22) 166162-A...
Need help?
Do you have a question about the CAUA and is the answer not in the manual?
Questions and answers