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Rinnai RGBCTWHRX Installation Instructions Manual
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Rinnai RGBCTWHRX Installation Instructions Manual

Rinnai RGBCTWHRX Installation Instructions Manual

Recess box
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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 instructions 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 installation.
•
For outdoor installation only.
•
Make sure the recess box is accessible for servicing and maintenance of the water heater.
Before installation, please make sure all parts are located inside the product box.
Item #
1
Recess Box
2
Front Door Panel
Vent Bracket
3
Vent Cap
4
8-32 Lock Nut with Washer
5
10-32 Lock Nut
6
Locking Bracket
7
Installation Instructions (this document)
8
•
Standard plumbing tools, such as pliers, pipe wrenches and screwdrivers
•
Isolation Valve Kit
•
Sealant and Caulk Gun
•
Drill (for drilling the piping connections)
•
Screws (galvanized or stainless steel to secure the recess box to the building structure)
•
Phillips Head Screwdriver
RGBCTWHRX
•
RX199i (REU-NB3237FF-US)
•
RX180i (REU-NB2934FF-US)
•
RX160i (REU-NB2530FF-US)
•
RX130i (REU-NB2024FF-US)
•
RXP199i (REU-NBP3237FF-US)
Item
•
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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Summary of Contents for Rinnai RGBCTWHRX

  • Page 1 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) • • RX160i (REU-NB2530FF-US) CX160i (REU-NB2530FFC-US) • • RX130i (REU-NB2024FF-US) CXP199i (REU-NBP3237FFC-US) • • RXP199i (REU-NBP3237FF-US)
  • Page 2 National Fuel supplier. • Gas Code, ANSI Z223.1/NFPA 54, or the Natural Gas Ensure all clearances are met per the Rinnai and Propane Installation Code, CSA B149.1 (also Tankless Water Heater Installation and Operation Manual.
  • Page 3 2. Following are the suggested framing layouts for recess box installation (Figure 4). 1. Remove the front door panel to prepare recess box Figure 4 for installation (Figure 5). Keep the front door panel Layout 1 to be used again in a future step in this document. Figure 5 King King Stud...

  • Page 4: Bottom View

    3. Refer to the following template to determine the cutout locations on recess box for piping (Figure 7). Position and secure the recess box to the building Figure 7 Dimensions: in [mm] structure with suitable screws (not supplied) (galvanized or stainless steel) through the 8 holes in the sides (4 BOTTOM VIEW holes on the left side and 4 holes on the right side) (Figures 9 and 10).
  • Page 5 Install the vent cap on the water heater (Figure 14). Figure 14 1. Prepare recess box for water heater installation: Vent Cap Remove the vent bracket from the recess box (Figure 11). Keep vent bracket to be used again in future step. Figure 11 Vent bracket Ensure that the vent cap is facing towards the...
  • Page 6 4. Push the water heater into the recess box. Ensure that 2. Ensure that the vent bracket slots line up with exhaust the top bracket of water heater lines up with recess vent (Figure 20). box studs (Figure 17). Figure 20 Figure 17 2 studs If required, install the locking bracket:...
  • Page 7 1. Seal all access hole penetrations with sealant to 1. Remove the caps from the water heater pipes and prevent moisture from leaking out of the recess box install the isolation valve kit (field-supplied). (Figure 23). 2. Install the pipes through the drilled access holes in the recess box (Figure 22).
  • Page 8 “Priority” button cause burns. WARNING 3. Open the Rinnai Central app from your smart device If proper settings are not selected before you use the and log into the Rinnai Central app with a tankless water heater, it will cause a hazardous situation professional account.
  • Page 9 6. Follow the steps in the Rinnai Central app to adjust 3(A). If using natural gas: Press the “On/Off” button to your tankless water heater settings. confirm natural gas. Then, proceed to step 4. 7. When settings are complete, the controller display If using propane gas, skip this step and proceed to will appear blank.
  • Page 10 6. The controller displays “nG” or “LPG,” and “In” or 9. When settings are complete, the controller display “Out” alternatively while the “Priority” button LED will appear blank. light is blinking. The controller is showing the Press the “On/Off” button to turn on the unit. current gas setting and indoor/outdoor setting.
  • Page 11 TERMINATION Figure 25: Room Air and External Termination Clearances SNOW Regulator vent outlet. In the event no regulator is present, H and I can be disregarded. Canadian Installations U.S. Installtions (CSA B149.1) (ANSI Z223.1/NFPA 54) Other than direct vent (Outdoor Other than direct vent (Outdoor Description unit and/or Room Air)
  • Page 12 Termination 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...