Reznor YDHA Installation guide

Reznor
Brand
Reznor
Model
YDHA
Type
Installation guide

This manual is also suitable for

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
PN
Component
No. Used
per Long
Side
No. Used
per Short
Side
Component
PN
Quantity
per Kit
Figure
Reference
0 Horizontal or vertical 1013496 Lag screw, 5/16 × 3 9 3 1013122 24
Figure 1
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
8*
Lag screw, 5/16 × 1-3/4
9** 3**
16244
24*
Lockwasher, 5/16 1333
Self-tapping screw, 1/4-20 × 3/4 16258
2
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
3
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)
2
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).
3
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
4
CP-P125-HW (07-20) 1020526-A
INSTALLATION—CONTINUED
Figure 4. Cabinet 3 on Horizontal or Vertical Curb
5
CP-P125-HW (07-20) 1020526-A
= HARDWARE LOCATION
HORIZONTAL CURB
VERTICAL CURB
6
CP-P125-HW (07-20) 1020526-A
APPENDIX
Figure A1. Horizontal Roof Curb Mount Structural Analysis (Sheet 1)
7
CP-P125-HW (07-20) 1020526-A
Figure A1. Horizontal Roof Curb Mount Structural Analysis (Sheet 2)
8
CP-P125-HW (07-20) 1020526-A
APPENDIX—CONTINUED
Figure A1. Horizontal Roof Curb Mount Structural Analysis (Sheet 3)
9
CP-P125-HW (07-20) 1020526-A
Figure A2. Flat Roof Curb Mount Structural Analysis (Sheet 1)
10
CP-P125-HW (07-20) 1020526-A
APPENDIX—CONTINUED
Figure A2. Flat Roof Curb Mount Structural Analysis (Sheet 2)
11
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.
©2020 Nortek Global HVAC LLC, O’Fallon, MO.
All rights reserved.
CP-P125-HW (07-20) 1020526-A
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Reznor YDHA Installation guide

Reznor
Brand
Reznor
Model
YDHA
Type
Installation guide
This manual is also suitable for

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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