Recess Box Installation Manual

ManualsBrandsTakagi ManualsWater Heater Parts & AccessoriesRecess Box for T-KJr2-OS T-K4-OS T-D2-OS

Instruction Sheet

1 100272738

INTRODUCTION

These recess boxes are available for the following tankless

water heaters:

• 110 Outdoor (T-KJr2-OS)

• 110(U) Outdoor (T-KJr2U-OS / T-KJr3U-OS)

• 310 Outdoor (T-K4-OS)

• 310(U) Outdoor (T-K4U-OS / T-K5U-OS)

• 510 Outdoor (T-D2-OS)

• 510(U) Outdoor (T-D2U-OS / T-D3U-OS)

• 140 Outdoor (T-H3M-OS)

WARNING! Read and understand these instructions,

as well as the water heater’s installation manual and

safety messages prior to installation. Failure to follow

instructions and safety messages could result in death

or serious injury. Instruction manual must remain with

water heater.

ACCESSORIES

Please ensure that your recess box includes the items shown

in Table 1.

Item # Qty. Description Illustration

1. 1 Box Case

2. 1 Cover

3. 2

Bottom Support

Bracket

4. 9 Self-Taping Screw

5. 1 Lock Bracket

6. 3 Heater Mounting Screw

7. 2 Door Screw

8. 1Tab

9. 1 Installation Instructions

Table 1.

CLEARANCES

Follow all local codes, or in the absence of local codes, the

current edition of “National Fuel Gas Code” ANSI Z223.1/

NFPA 54 and vent termination clearances in the heater’s

installation manual.

Locate the water heater in an open, unroofed area and

maintain the clearances shown in Table 2 and Figure 1.

In addition to these clearances, follow all installation and

clearance instructions in the water heater’s installation

manual.

1 ft. 1 ft.

1 ft.

3 ft.

Figure 1.

If this water heater is installed under an overhang, maintain a

minimum distance of 3 ft. to the top of the exhaust. The area

under the overhang must be open on 3 sides (see Figure 1).

Minimum Clearances to Combustible or

Non-combustible Construction

Top of heater 0 Inch

Back of heater 0 inch

Front of heater 24 inches

Side of heater 0 Inch

Bottom of heater 0 Inch

FOR OUTDOOR INSTALLATION ONLY

Table 2.

If you have any questions, call the Customer Service

department listed on water heater’s installation manual.

RECESS BOX: 100266729 & 100266730

Summary of content (4 pages)

PAGE 1
Instruction Sheet RECESS BOX: 100266729 & 100266730 INTRODUCTION These recess boxes are available for the following tankless water heaters: • 110 Outdoor (T-KJr2-OS) • 110(U) Outdoor (T-KJr2U-OS / T-KJr3U-OS) • 310 Outdoor (T-K4-OS) • 310(U) Outdoor (T-K4U-OS / T-K5U-OS) • 510 Outdoor (T-D2-OS) • 510(U) Outdoor (T-D2U-OS / T-D3U-OS) • 140 Outdoor (T-H3M-OS) CLEARANCES Follow all local codes, or in the absence of local codes, the current edition of “National Fuel Gas Code” ANSI Z223.
PAGE 2
100266729 (INSTALLATION OF RECESS BOX FOR RETROFIT) 1. Remove and retain the screws (Item #7) securing the front cover (Item #2) to the recess box (Item #1) (see Figure 2). 2. Remove the front cover and set aside for reuse later to complete the installation. 3. Use a step bit or metal hole saw to drill holes for the water lines, gas line, pressure relief valve discharge line, and electrical supply. Holes for the water and gas lines must be able to fit ¾” lines (see Figure 6).
PAGE 3
WATER HEATER INSTALLATION IN RECESS BOX 1. Install the bottom support brackets (Item #3) using two screws (Item #4) into the appropriate set of holes for the heater that is being installed (see Figure 6). a. for Models 110(U), 310(U), and 510(U) use the upper set of holes b. for Models140 use the lower set of holes 2. Remove and set aside the front cover of the water heater. 3. Install the water heater into the recess box: a.
PAGE 4
TOP MOUNT BRACKET TOP MOUNT BRACKET (SEE DETAILS IN Figure 7) SOME AREAS CUT AWAY TO SHOW MOUNTING DETAIL (SEE DETAILS IN Figure 7) SCREW WATER HEATER WATER HEATER BOTTOM SUPPORT BRACKET BOTTOM SUPPORT BRACKET SCREW Figure 7. Figure 9. TOP MOUNT BRACKET TOP MOUNT BRACKET (SEE DETAILS IN Figure 8) SOME AREAS CUT AWAY TO SHOW MOUNTING DETAIL (SEE DETAILS IN Figure 8) SCREW WATER HEATER TAB BOTTOM SUPPORT BRACKET WATER HEATER BOTTOM SUPPORT BRACKET SCREW Figure 8. Figure 10.