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Recess Box Part Number
For Use with Rinnai Tankless
Water Heater Models:
WARNING
•
Failure to correctly assemble the components according to these instruc ons may result in electric shock, injury,
or death.
•
A trained and qualified professional must install and inspect the recess box before use.
•
Warranty will be voided due to any improper installa on.
•
For outdoor installa on only.
•
Make sure the recess box is accessible for servicing and maintenance of the water heater.
Items Inside Product Box
Before installa on, please make sure all parts are located inside the product box.
Item #
1
Recess Box
2
Front Door Panel
3
Vent Bracket
Vent Cap
4
8-32 Lock Nut with Washer
5
10-32 Lock Nut
6
Locking Bracket
7
8
Installa on Instruc ons (this document)
You Will Need (Field-Supplied)
•
Standard plumbing tools, such as pliers, pipe wrenches and screwdrivers
•
Isola on Valve Kit
•
Sealant and Caulk Gun
•
Drill (for drilling the piping connec ons)
•
Screws (galvanized or stainless steel to secure the recess box to the building structure)
•
Phillips Head Screwdriver
For help with product installation, troubleshooting, servicing and more, visit
rinnaipro.myabsorb.com
RGBCTWHRX
•
RX199i (REU-NB3237FF-US)
•
RX180i (REU-NB2934FF-US)
•
RX160i (REU-NB2530FF-US)
•
RX130i (REU-NB2024FF-US)
•
RXP199i (REU-NBP3237FF-US)
Item
INSTALLATION INSTRUCTIONS
RGBCTWHRX Recess Box
•
RXP160i (REU-NBP2530FF-US)
•
CX199i (REU-NB3237FFC-US)
•
CX160i (REU-NB2530FFC-US)
•
CXP199i (REU-NBP3237FFC-US)
•
CXP160i (REU-NBP2530FFC-US)
Qty
Figure 1
1
1
1
1
3
3
4
1
1
3
6
2
5
7
1
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Related Manuals for Rinnai RGBCTWHRX
Summary of Contents for Rinnai RGBCTWHRX
- Page 1 INSTALLATION INSTRUCTIONS RGBCTWHRX Recess Box For help with product installation, troubleshooting, servicing and more, visit rinnaipro.myabsorb.com Recess Box Part Number RGBCTWHRX • • For Use with Rinnai Tankless RX199i (REU-NB3237FF-US) RXP160i (REU-NBP2530FF-US) • • Water Heater Models: RX180i (REU-NB2934FF-US) CX199i (REU-NB3237FFC-US) •...
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Page 2: Step 2: Prepare The Wall
Na onal Fuel supplier. • Gas Code, ANSI Z223.1/NFPA 54, or the Natural Gas Ensure all clearances are met per the Rinnai and Propane Installa on Code, CSA B149.1 (also Tankless Water Heater Installa on and Opera on Manual. - Page 3 2. Drill 4 holes spaced out along the length of the le and right sides of the recess box (Figure 6). Hole sizes are dependent on screw size. King Stud Header Figure 6 Blocking Trimmer Rough Opening Stud Sill Jack Studs Sill Trimmer RGBCTWHRX Recess Box Installation Instructions...
- Page 4 Watch for interference with the framing stud before drilling the holes. 5. Apply a 3/8 in. bead of sealant along the back of the recess box flange (Figure 8). Figure 8 Seal all sides RGBCTWHRX Recess Box Installation Instructions...
- Page 5 3. Li the water heater into the recess box and guide the bo om bracket of water heater to hanging 2x screws bracket of recess box (Figure 16). Figure 16 Remove and discard the exhaust adapter ring (Figure 13). Figure 13 Exhaust Adapter Ring RGBCTWHRX Recess Box Installation Instructions...
- Page 6 (supplied) (Figure 21). Figure 18 Figure 21 2x 10-32 Nuts Step 6: Install the Vent Bracket 1. Reassemble the vent bracket through the exhaust vent of cap (Figure 19). Vent Figure 19 Bracket RGBCTWHRX Recess Box Installation Instructions...
- Page 7 1. Check for gas and water leaks. Figure 22 2. Install the recess box front door panel by inser ng the top end first and then pressing the bo om end into the recess box (Figure 24). Figure 24 RGBCTWHRX Recess Box Installation Instructions...
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Page 8: Appendix A: Termination Clearances
[2] Permitted only if veranda, porch, deck, or balcony is fully open on a minimum (Dégagement conforme aux codes d’installation of two sides beneath the floor. locaux et aux exigences du foumisseur de gaz.) RGBCTWHRX Recess Box Installation Instructions... - Page 9 Termina on Clearance for External (Outdoor) Water Heaters Figure 26 36 in. (0.91 m) to ventilated or unventilated soffit or eve vent; or to a deck or porch 12 in. 60 in. (1.52 m) vertically between terminals Corner 100000853 9/2023 RGBCTWHRX Recess Box Installation Instructions...
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