Zone Damper Bottom Mount - 8x20

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Product number:78055
Manufacturer number:ZD8X20TZ/U
Other models available
Additional Info
- Additional Info
- 8 x 20 in Opening Size
Application
Description
Electrical
Fan
Features
General Information
Material
Measurements
Motor
Temperature
Product description
Blade Action: Parallel
Motor or Actuator Mounting: Bottom
Motor Timing: 30 seconds power open/10 seconds spring return
Wires to Motor: Terminals: M1-Power; M6 Common; M4 (optional)-LED indication
Other Motor Information: Simplified range stops
Overview
The ZD is a power close and spring open damper. It has a 24-volt motor used to control circulating air in HVAC systems and used when a normally-open damper is required. The ZD is typically used with the TrueZONE and other electronic zoning systems.
Features
• Mechanical visual position indicator for damper status.
• Solid construction using extruded aluminum frame and blades.
• Parallel blade design for low leakage performance.
• Simple, easy-to-wire, two-wire installation.
• Reliable, strong, 24-volt spring-return motor.
• Fail-safe, normally open operation.
• Ordering Instructions: Order ZD (dimension 1) x (dimension 2). (Motor is always mounted on dimension 2 side.) For example, ZD10x8 is a 10 in. x 8 in. damper with the motor on the 8 in. side; but a ZD8x10 is an 8 in. x 10 in. damper that has the motor on the 10 in. side.
• Damper can be installed in any orientation (mounting side can be on either the bottom or the side of the duct).
Motor or Actuator Mounting: Bottom
Motor Timing: 30 seconds power open/10 seconds spring return
Wires to Motor: Terminals: M1-Power; M6 Common; M4 (optional)-LED indication
Other Motor Information: Simplified range stops
Overview
The ZD is a power close and spring open damper. It has a 24-volt motor used to control circulating air in HVAC systems and used when a normally-open damper is required. The ZD is typically used with the TrueZONE and other electronic zoning systems.
Features
• Mechanical visual position indicator for damper status.
• Solid construction using extruded aluminum frame and blades.
• Parallel blade design for low leakage performance.
• Simple, easy-to-wire, two-wire installation.
• Reliable, strong, 24-volt spring-return motor.
• Fail-safe, normally open operation.
• Ordering Instructions: Order ZD (dimension 1) x (dimension 2). (Motor is always mounted on dimension 2 side.) For example, ZD10x8 is a 10 in. x 8 in. damper with the motor on the 8 in. side; but a ZD8x10 is an 8 in. x 10 in. damper that has the motor on the 10 in. side.
• Damper can be installed in any orientation (mounting side can be on either the bottom or the side of the duct).
| File name | Document type | Extension | File size | Updated at | |
|---|---|---|---|---|---|
| honeywell-ard18tz-u-manual-ast-unilog-400281.pdf | 0.48 MB | 03.06.2026 | 06:46 | |||
| zdspec-pdf-ast-nucomfortspec-zdspec.pdf | 0.21 MB | 03.06.2026 | 06:46 |
Product
Product ID
Stock
Quantity
List price
Discount
Net price

ID: 55829
MFC: C7189R2002-2
ID: 82318
MFC: ZD20X12TZ

ID: 95283
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ID: 93964
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ID: 10854
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ID: 10252
MFC: ARD10TZ/U
ID: 10280
MFC: ARD14TZ/U
ID: 10300
MFC: ARD16TZ/U
ID: 82327
MFC: ARD18TZ/U
ID: 10325
MFC: ARD8TZ/U
ID: 10438
MFC: C7735A1000/U
ID: 96466
MFC: YERM5220RVPEIM/U
ID: 78221
MFC: FM911/U
ID: 94238
MFC: AP401/U
ID: 10433
MFC: C7189U1005/U
ID: 10431
MFC: C7189R1004/U

ID: 90634
MFC: MRK
ID: 10418
MFC: C7089U1006/U
ID: 10411
MFC: C7089R1013/U

ID: 10563
MFC: ERM5220R1018/U
ID: 91009
MFC: SAS
ID: 10741
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ID: 27336
MFC: HZ311K
ID: 10748
MFC: HZ322/U
ID: 10751
MFC: HZ322K/U
ID: 10755
MFC: HZ432/U
ID: 10759
MFC: HZ432K/U
ID: 92176
MFC: UT-3000

ID: 87085
MFC: UZC-4
ID: 85167
MFC: ZD10X10TZ/U
ID: 80671
MFC: ZD10X12TZ/U
ID: 86121
MFC: ZD10X18TZ/U
ID: 81622
MFC: ZD10X20TZ/U
ID: 82270
MFC: ZD10X24TZ/U

ID: 78553
MFC: ZD12X24TZ/U
ID: 81836
MFC: ZD8X14TZ/U
ID: 82601
MFC: ZD8X18TZ/U
ID: 78055
MFC: ZD8X20TZ/U
ID: 79187
MFC: ZD8X24TZ/U
ID: 79089
MFC: ZD24X10
Additional Info
- Additional Info
- 8 x 20 in Opening Size
Application
Description
Electrical
Fan
Features
General Information
Material
Measurements
Motor
Temperature
Product description
Blade Action: Parallel
Motor or Actuator Mounting: Bottom
Motor Timing: 30 seconds power open/10 seconds spring return
Wires to Motor: Terminals: M1-Power; M6 Common; M4 (optional)-LED indication
Other Motor Information: Simplified range stops
Overview
The ZD is a power close and spring open damper. It has a 24-volt motor used to control circulating air in HVAC systems and used when a normally-open damper is required. The ZD is typically used with the TrueZONE and other electronic zoning systems.
Features
• Mechanical visual position indicator for damper status.
• Solid construction using extruded aluminum frame and blades.
• Parallel blade design for low leakage performance.
• Simple, easy-to-wire, two-wire installation.
• Reliable, strong, 24-volt spring-return motor.
• Fail-safe, normally open operation.
• Ordering Instructions: Order ZD (dimension 1) x (dimension 2). (Motor is always mounted on dimension 2 side.) For example, ZD10x8 is a 10 in. x 8 in. damper with the motor on the 8 in. side; but a ZD8x10 is an 8 in. x 10 in. damper that has the motor on the 10 in. side.
• Damper can be installed in any orientation (mounting side can be on either the bottom or the side of the duct).
Motor or Actuator Mounting: Bottom
Motor Timing: 30 seconds power open/10 seconds spring return
Wires to Motor: Terminals: M1-Power; M6 Common; M4 (optional)-LED indication
Other Motor Information: Simplified range stops
Overview
The ZD is a power close and spring open damper. It has a 24-volt motor used to control circulating air in HVAC systems and used when a normally-open damper is required. The ZD is typically used with the TrueZONE and other electronic zoning systems.
Features
• Mechanical visual position indicator for damper status.
• Solid construction using extruded aluminum frame and blades.
• Parallel blade design for low leakage performance.
• Simple, easy-to-wire, two-wire installation.
• Reliable, strong, 24-volt spring-return motor.
• Fail-safe, normally open operation.
• Ordering Instructions: Order ZD (dimension 1) x (dimension 2). (Motor is always mounted on dimension 2 side.) For example, ZD10x8 is a 10 in. x 8 in. damper with the motor on the 8 in. side; but a ZD8x10 is an 8 in. x 10 in. damper that has the motor on the 10 in. side.
• Damper can be installed in any orientation (mounting side can be on either the bottom or the side of the duct).
| File name | Document type | Extension | File size | Updated at | |
|---|---|---|---|---|---|
| honeywell-ard18tz-u-manual-ast-unilog-400281.pdf | 0.48 MB | 03.06.2026 | 06:46 | |||
| zdspec-pdf-ast-nucomfortspec-zdspec.pdf | 0.21 MB | 03.06.2026 | 06:46 |
Product
Product ID
Stock
Quantity
List price
Discount
Net price

ID: 55829
MFC: C7189R2002-2
ID: 82318
MFC: ZD20X12TZ

ID: 95283
MFC: BMPLUS-3000

ID: 93964
MFC: NCM-300

ID: 10854
MFC: M847D-ZONE
ID: 10252
MFC: ARD10TZ/U
ID: 10280
MFC: ARD14TZ/U
ID: 10300
MFC: ARD16TZ/U
ID: 82327
MFC: ARD18TZ/U
ID: 10325
MFC: ARD8TZ/U
ID: 10438
MFC: C7735A1000/U
ID: 96466
MFC: YERM5220RVPEIM/U
ID: 78221
MFC: FM911/U
ID: 94238
MFC: AP401/U
ID: 10433
MFC: C7189U1005/U
ID: 10431
MFC: C7189R1004/U

ID: 90634
MFC: MRK
ID: 10418
MFC: C7089U1006/U
ID: 10411
MFC: C7089R1013/U

ID: 10563
MFC: ERM5220R1018/U
ID: 91009
MFC: SAS
ID: 10741
MFC: HZ311/U
ID: 27336
MFC: HZ311K
ID: 10748
MFC: HZ322/U
ID: 10751
MFC: HZ322K/U
ID: 10755
MFC: HZ432/U
ID: 10759
MFC: HZ432K/U
ID: 92176
MFC: UT-3000

ID: 87085
MFC: UZC-4
ID: 85167
MFC: ZD10X10TZ/U
ID: 80671
MFC: ZD10X12TZ/U
ID: 86121
MFC: ZD10X18TZ/U
ID: 81622
MFC: ZD10X20TZ/U
ID: 82270
MFC: ZD10X24TZ/U

ID: 78553
MFC: ZD12X24TZ/U
ID: 81836
MFC: ZD8X14TZ/U
ID: 82601
MFC: ZD8X18TZ/U
ID: 78055
MFC: ZD8X20TZ/U
ID: 79187
MFC: ZD8X24TZ/U
ID: 79089
MFC: ZD24X10
