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INSTALLATION INSTRUCTIONS FOR OUTDOOR AIR DAMPERS AND OUTDOOR AIR
Shipping and Packing List
13U04 Motorized Outdoor Air Damper
Package 1 of 1 contains:
1- Outdoor air damper (OAD) assembly
1- Bag assembly containing:
2-Wiring diagram D sections
1-P160 wiring harness
Outdoor air hood parts (same as 13U05 hood parts
except there are NOT two manual damper blades)
13U05 Manual Outdoor Air Damper
Package 1 of 1 contains:
2- Manual damper blades
Outdoor air hood parts*
1-Hood top
1-Bottom filter bracket
2-Front filter brackets
2-Hood sides
2-Filters
Bag assembly containing:
46-Self drilling screws
*When outdoor air assembly is factory-installed,
outdoor air hood parts are packaged separately and
shipped in the filter compartment. See figure 1.
WARNING
Improper installation, adjustment, alteration, ser
vice or maintenance can cause property damage,
personal injury or loss of life. Installation and ser
vice must be performed by a licensed professional
HVAC installer or equivalent, service agency, or the
gas supplier
Damper Type
Unit
Motorized
156-300S
Manual
156-300S
OUTDOOR AIR DAMPERS
507214-04
2/2019
Supersedes 507214-03
HOOD USED WITH 156-300S UNITS
Optional outdoor air dampers provide fresh outdoor air.
See table 1 for usage.
C1DAMP20C-1 Motorized Dampers:
Electro-mechanical units (no Unit Controller)-
The damper opens to a set position when the blower is
operating. To operate the damper only during the
occupied time period, an optional thermostat or energy
management system must be installed that provides an
occupied signal to the unit's thermostat connection.
Units equipped with an A55 Unit Controller-
The damper opens to a set position when the blower is
operating and an occupied signal is provided to the Unit
Controller
C1DAMP10C-1 Manual Damper:
Damper is manually operated; damper position is
manually set at installation and remains in that position.
TABLE 1
Model #
C1DAMP20C-1
C1DAMP10C-1
Page 1
OUTDOOR AIR DAMPERS
CAUTION
As with any mechanical equipment, contact with
sharp sheet metal edges can result in personal in
jury. Take care while handling this equipment and
wear gloves and protective clothing.
Application
Install Motorized Damper - C1DAMP20C-1
1- Disconnect all power to unit and open filter access
panel.
2- If damper is factory-installed, remove six screws
securing hood top to access panel. See figure 2. Retain
hood top and go to the Outdoor Air Hood section.
3- Remove and retain sheet metal screws securing
cover plate to the top rear access panel. Discard
cover plate. See figure 3.
Part #
613924-01
613924-02
Cat. #
13U04
13U05
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Summary of Contents for Lennox C1DAMP20C-1
- Page 1 See figure 1. Install Motorized Damper - C1DAMP20C-1 1- Disconnect all power to unit and open filter access panel.
- Page 2 See figure 5. Secure with retained screws. 6- From inside the filter access panel, remove the unit Install Motorized Damper - C1DAMP20C-1 jumper plug P3 from unit jack J3 and discard. See Continued figure 6.
- Page 3 DISCARD P3 JUMPER PLUG INTERLINK DAMPER MOTOR - NO UNIT CONTROLLER J3 UNIT JACK DIP SWITCH ACCESS COVER RETAINER CLIP MOVE STOP THIS REMOVE AND DAMPER DIRECTION FOR LESS DISCARD P3 STOP OUTDOOR AIR JUMPER PLUG FACTORY- CHANGE TO FIGURE 6 INSTALLED SETTING THIS SETTING WIRING...
- Page 4 4- Field-Installed Dampers - Install Manual Damper - C1DAMP10C-2 Install the two damper blades over the cover plate opening. Secure using four provided screws. See 1- Disconnect all power to unit figure 8. 2- If manual damper is factory-installed, remove six 5- Factory-Installed Dampers - screws securing hood top to access panel.
- Page 5 7- Install front filter bracket on the left side of the hood. Outdoor Air Hood Secure with three screws. See figure 11 and 12. Align dimples to position hood parts and secure in place 8- Insert filter into the bottom filter bracket. Slide filter to the with #10 self-drilling screws.
- Page 6 the top line of chart 1 and label the point “B” (74°F, Determine Outdoor Air Percentage 23°C shown). 3- Measure mixed air (outdoor and return air) Outdoor air percentage can be estimated in the same temperature. Mark that point on the top line of chart manner for both manual and motorized dampers.
- Page 7 Units Not Equipped With A Unit Controller Damper Minimum Position Adjustments The damper motor stop is preset to provide 100% outdoor air and is adjustable in fixed increments. For Units Equipped With M2 and M3 Unit Controllers units supporting more than 1 blower speed, the damper minimum set point should be determined with The damper minimum position or positions are the blower operating at the highest speed.
- Page 8 3- Read the damper percentage open. Minimum Damper Position Range Units Equipped With Unit Controller - The motorized outdoor air damper operation is optimized as shown in the shaded area of Chart 2. Unit operation The damper percentage open was entered into the during minimum damper position above this curve Unit Controller.