Reznor YDHA Installation guide

Brand: Reznor

Model: YDHA

Type: Installation guide

This manual is also suitable for

YDMA
YDSA

Reznor YDHA is a powerful and versatile direct spark ignition heater designed to deliver reliable warmth and comfort to your indoor spaces. Its advanced features include:

High-Efficiency Operation: The YDHA boasts a remarkable thermal efficiency of up to 83%, ensuring optimal fuel utilization and reduced energy consumption while effectively heating your desired areas.
Precise Temperature Control: Equipped with a built-in thermostat, the YDHA allows you to set and maintain your preferred temperature with precision. This ensures a consistently comfortable environment, eliminating the need for constant adjustments.

Reznor YDHA is a powerful and versatile direct spark ignition heater designed to deliver reliable warmth and comfort to your indoor spaces. Its advanced features include:

High-Efficiency Operation: The YDHA boasts a remarkable thermal efficiency of up to 83%, ensuring optimal fuel utilization and reduced energy consumption while effectively heating your desired areas.
Precise Temperature Control: Equipped with a built-in thermostat, the YDHA allows you to set and maintain your preferred temperature with precision. This ensures a consistently comfortable environment, eliminating the need for constant adjustments.

GENERAL INFORMATION

Due to requirements in the State of Florida that require extra measures to prevent damage from hurricane-force

(≥144 mph) winds, high-wind hold-down kits (option CJA6 for vertical curbs or CJA7 for horizontal curbs) are offered

for securing a P125 model unit to its curb base. This kit may be installed on new or existing installations. Table 1

lists available kits, their applicability and components, and quantities used per cabinet side.

Table 1. High-Wind Hold-Down Kit Components

Cabinet

Curb

Type

Kit

Component

No. Used

per Long

Side

No. Used

per Short

Side

Component

Quantity

per Kit

Figure

Reference

0 Horizontal or vertical 1013496 Lag screw, 5/16 × 3 9 3 1013122 24

Figure 1

Vertical

(with or without

energy recovery

wheel option)

1013497

Wind anchor bracket 6 3 1013120

18*

Figure 2

Lag screw, 5/16 × 1-3/4

18** 9**

16244

54*

Lockwasher, 5/16 1333

Self-tapping screw, 1/4-20 × 3/4 16258

Horizontal

(with or without

energy recovery

wheel option)

1013498

Wind anchor bracket 3 1 1013120

Lag screw, 5/16 × 1-3/4

9** 3**

16244

24*

Lockwasher, 5/16 1333

Self-tapping screw, 1/4-20 × 3/4 16258

Vertical

(with energy

recovery wheel

option)

1013499

Wind anchor bracket 7 3 1013120 20

Figure 3

Lag screw, 5/16 × 1-3/4

21** 9**

16244

60Lockwasher, 5/16 1333

Self-tapping screw, 1/4-20 × 3/4 16258

Vertical

(without energy

recovery wheel

option)

1013500

Wind anchor bracket 6 3 1013120 18

Figure 2

Lag screw, 5/16 × 1-3/4

18** 9**

16244

54Lockwasher, 5/16 1333

Self-tapping screw, 1/4-20 × 3/4 16258

Horizontal

(with energy

recovery wheel

option)

1013501

Wind anchor bracket 3 2 1013120 10

Figure 3

Lag screw, 5/16 × 1-3/4

9** 6**

16244

30Lockwasher, 5/16 1333

Self-tapping screw, 1/4-20 × 3/4 16258

Horizontal

(without energy

recovery wheel

option)

1013502

Wind anchor bracket 3 1 1013120 8

Figure 2

Lag screw, 5/16 × 1-3/4

9** 3**

16244

24Lockwasher, 5/16 1333

Self-tapping screw, 1/4-20 × 3/4 16258

Vertical 1013503

Wind anchor bracket 9 5 1013121 28

Figure 4

Lag screw, 5/16 × 1-3/4

27** 15**

16244

84Lockwasher, 5/16 1333

Self-tapping screw, 1/4-20 × 3/4 16258

Horizontal 1013504

Wind anchor bracket 4 2 1013121 12

Lag screw, 5/16 × 1-3/4

12** 6**

16244

36Lockwasher, 5/16 1333

Self-tapping screw, 1/4-20 × 3/4 16258

*Same quantity for units with or without energy recovery wheel option.

**Three (3) used for each wind anchor bracket.

Revision: CP-P125-HW (07-20) 1020526-A

HIGH-WIND HOLD-DOWN KIT INSTALLATION

Supersedes: CP-P125-HW (07-19) PN1020526R0

OPTION CJA6 OR CJA7 FOR P125 MODEL UNITS (CABINETS 0, 1, 2, AND 3)

CP-P125-HW (07-20) 1020526-A

INSTALLATION

Install the high-wind hold-down kit as follows. For additional information, refer to the APPENDIX.

1. Refer to Table 1 to select appropriate kit for type of curb and cabinet used.

NOTE: Mounting hardware must be installed on all four cabinet/curb sides.

2. Refer to the following ﬁgures for where to install hardware included in each kit:

a. For cabinet 0 installations, see Figure 1.

b. For cabinet 1 or cabinet 2 (without energy recovery wheel option) installations, see Figure 2.

c. For cabinet 2 (with energy recovery wheel option) installations, see Figure 3.

d. For cabinet 3 installations, see Figure 4.

NOTE: Wind anchor brackets must be vertically-aligned and spaced equidistantly from each other

on each cabinet side. Brackets must be ≤10 inches from cabinet corners.

3. Pre-drill holes at mounting hardware locations using 3/8-inch bit in sheet metal cabinet for self-tapping

screws and in wooden curb ﬂange for lag screws. Ensure that wind anchor brackets will be vertically-

aligned, spaced equidistantly from each other on each cabinet side, and ≤10 inches from cabinet corners.

4. Attach kit hardware as follows:

a. For cabinet 0 installations, secure cabinet to curb base using three lag screws tightened into wooden curb

ﬂange at each hardware location.

b. For cabinet 1, 2, or 3 installations, secure wind anchor brackets to cabinet using self-tapping screws and secure

brackets to curb base using lockwashers and lag screws tightened into wooden curb ﬂange.

Figure 1. Cabinet 0 Hardware Locations

= HARDWARE LOCATION

NOTE: HARDWARE LOCATION IS

SAME FOR HORIZONTAL AND

VERTICAL CURB (HORIZONTAL

CURB SHOWN).

CP-P125-HW (07-20) 1020526-A

Figure 2. Cabinet 1 and Cabinet 2 (Without Energy Recovery Wheel Option) Hardware Locations

= HARDWARE LOCATION

HORIZONTAL CURB

VERTICAL CURB

NOTE: HARDWARE

LOCATION IS SAME

FOR CABINET 1 AND

CABINET 2 (CABINET

1 SHOWN).

NOTE: HARDWARE

LOCATION IS SAME

FOR CABINET 1 AND

CABINET 2 (CABINET

2 SHOWN).

Figure 3. Cabinet 2 (with Energy Recovery Wheel Option) Hardware Locations

CP-P125-HW (07-20) 1020526-A

INSTALLATION—CONTINUED

Figure 4. Cabinet 3 on Horizontal or Vertical Curb

CP-P125-HW (07-20) 1020526-A

= HARDWARE LOCATION

HORIZONTAL CURB

VERTICAL CURB

CP-P125-HW (07-20) 1020526-A

APPENDIX

Figure A1. Horizontal Roof Curb Mount Structural Analysis (Sheet 1)

CP-P125-HW (07-20) 1020526-A

Figure A1. Horizontal Roof Curb Mount Structural Analysis (Sheet 2)

CP-P125-HW (07-20) 1020526-A

APPENDIX—CONTINUED

Figure A1. Horizontal Roof Curb Mount Structural Analysis (Sheet 3)

CP-P125-HW (07-20) 1020526-A

Figure A2. Flat Roof Curb Mount Structural Analysis (Sheet 1)

CP-P125-HW (07-20) 1020526-A

APPENDIX—CONTINUED

Figure A2. Flat Roof Curb Mount Structural Analysis (Sheet 2)

CP-P125-HW (07-20) 1020526-A

Figure A2. Flat Roof Curb Mount Structural Analysis (Sheet 3)

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

CP-P125-HW (07-20) 1020526-A

Reznor YDHA Installation guide

Brand: Reznor

Model: YDHA

Type: Installation guide

This manual is also suitable for

YDMA
YDSA

Reznor YDHA is a powerful and versatile direct spark ignition heater designed to deliver reliable warmth and comfort to your indoor spaces. Its advanced features include:

High-Efficiency Operation: The YDHA boasts a remarkable thermal efficiency of up to 83%, ensuring optimal fuel utilization and reduced energy consumption while effectively heating your desired areas.
Precise Temperature Control: Equipped with a built-in thermostat, the YDHA allows you to set and maintain your preferred temperature with precision. This ensures a consistently comfortable environment, eliminating the need for constant adjustments.

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