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Description

Tjernlund VFD-Series Drives from Yaskawa are pulse width modulated to generate an adjustable voltage to frequency three phase output for complete
speed control of Tjernlund Auto-Draft® Series Commercial Ventilation and Draft Systems.  All Drives are factory programmed for the Inducer or Blower
they are controlling and specific mode of operation.  

An Automatic-Variable Speed system includes a closed loop VFD, CPC-3 Constant Pressure Controller, TD-Series Pressure Transducer and an Auto-
Draft® Inducer or Universal Blower. This system will automatically adjust the Inducer/Blower speed based on the pressure in the stack or room to always
deliver perfect draft or combustion air. Closed loop VFD’s include 10’ quick connect cable to connect VFD and Inducer/Blower limit circuits to CPC-3.

An Adjustable-Fixed Speed system includes an an open loop VFD and an Auto-Draft® Inducer or Universal Blower. Inducer/Blower speed is manually
adjusted by the installer with the VFD. Open loop VFD’s include a Relay for easier interlock with the UC1 Universal Control.

Construction

The housing is constructed from 18 gauge aluminized steel and is coated with an industrial powder coating. It has NEMA class 1 construction.

Listings

UL, ULc and CE compliant.  

FIGURE 8061003

MOTOR DRIVE (VFD)

7.75"

15.25"

11.5"

SIDE VIEW

FRONT VIEW

Tjernlund Products, Inc. • 1601 Ninth Street • White Bear Lake, MN 55110 •  (651) 426-2993 • (800) 255-4208 • FAX (651) 426-9547 • www.tjernlund.com

P/N 8513014 REV A 12/04

VFD MODEL

MODEL USED
WITH

INPUT VOLTAGE (ALL DRIVES 
PRODUCE 3 PHASE OUTPUT)

HP

3 PHASE

AMPS

VFD-1/2H1A82C3 VSAD8-230

208-230 Volt Single or 3 Phase

1/2 HP 3.0

VFD-1/2H1A84C3 VSAD8-460A

460 Volt 3 Phase

1/2 HP 1.2

VFD-1H1A81C3

VSAD8-230

115 VAC input/230 Volt 3 Phase Output

1 HP

5.0

VFD-1H1A101C3 VSAD10-230

115 VAC input/230 Volt 3 Phase Output

1 HP

5.0

VFD-1H1A102C3 VSAD10-230

208-230 Volt Single or 3 Phase

1 HP

5.0

VFD-1H1A104C3 VSAD10-460A

460 Volt 3 Phase

1 HP

3.4

VFD-2H1A122C3 VSAD12-230

208-230 Volt Single or 3 Phase

2 HP

8.0

VFD-2H1A124C3 VSAD12-460A

460 Volt 3 Phase

2 HP

3.4

VFD-1/2H1A82O3 VSAD8-230

208-230 Volt Single or 3 Phase

1/2 HP 3.0

VFD-1/2H1A84O3 VSAD8-460A

460 Volt 3 Phase

1/2 HP 1.2

VFD-1H1A81O3

VSAD8-230

115 VAC input/230 Volt 3 Phase Output

1 HP

3.0

VFD-1H1A1O1O3 VSAD10-230

115 VAC input/230 Volt 3 Phase Output

1 HP

5.0

VFD-1H1A102O3 VSAD10-230

208-230 Volt Single or 3 Phase

1 HP

5.0

VFD-1H1A104O3 VSAD10-460A

460 Volt 3 Phase

1 HP

3.4

VFD-2H1A122O3 VSAD12-230

208-230 Volt Single or 3 Phase

2 HP

8.0

VFD-2H1A124O3 VSAD12-460A

460 Volt 3 Phase

2 HP

3.4

VFD-5H2A122C3 (2) VSAD12-230

208-230 Volt Single or 3 Phase

5 HP

17.5

VFD-5H2A124C3 (2) VSAD12-460A 460 Volt 3 Phase

5 HP

8.6

VFD-1/2H1U82C3 VSUB8

208-230 Volt Single or 3 Phase

1/2 HP 3.0

VFD-1/2H1U84C3 VSUB8

460 Volt 3 Phase

1/2 HP 1.2

VFD-1H1U81C3

VSUB8

115 VAC input/230 Volt 3 Phase Output

1 HP

5.0

VFD-1H1U121C3 VSUB12

115 VAC input/230 Volt 3 Phase Output

1 HP

5.0

VFD-1H1U122C3 VSUB12

208-230 Volt 3 Phase

1 HP

5.0

VFD-1H1U124C3 VSUB12

460 Volt 3 Phase

1 HP

3.4

VFD-2H1U162C3 VSUB16

208-230 Volt 3 Phase

2 HP

8.0

VFD-2H1U164C3 VSUB16

460 Volt 3 Phase

2 HP

3.4

VFD-3H1U202C3 VSUB20

208-230 Volt 3 Phase

3 HP

11.0

VFD-3H1U204C3 VSUB20

460 Volt 3 Phase

3 HP

4.8

VFD-1/2H1U82O3 VSUB8

208-230 Volt Single or 3 Phase

1/2 HP 3.0

VFD-1/2H1U84O3 VSUB8

460 Volt 3 Phase

1/2 HP 1.2

VFD-1H1U81O3

VSUB8

115 VAC input/230 Volt 3 Phase Output

1 HP

3.0

VFD-1H1U121O3 VSUB12

115 VAC input/230 Volt 3 Phase Output

1 HP

5.0

VFD-1H1U122O3 VSUB12

208-230 Volt 3 Phase

1 HP

5.0

VFD-1H1U124O3 VSUB12

460 Volt 3 Phase

1 HP

3.4

VFD-2H1U162O3 VSUB16

208-230 Volt 3 Phase

2 HP

8.0

VFD-2H1U164O3 VSUB16

460 Volt 3 Phase

2 HP

3.4

VFD-3H1U202O3 VSUB20

208-230 Volt 3 Phase

3 HP

11.0

VFD-3H1U204O3 VSUB20

460 Volt 3 Phase

3 HP

4.8

Submitt

Submitt

al Dat

al Dat

a Sheet

a Sheet

VFD-SERIES V

VFD-SERIES V

ARIABLE FREQUENCY

ARIABLE FREQUENCY

DRIVES

DRIVES

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Page 210: ...til the vent system draft and or combustion air set point is reached When the set point is reached the CPC 3 completes the circuit to the inter locked appliance allowing the normal firing sequence to resume Additional burner stages will create a momentary decrease in vent sys tem pressures causing the inducer blower to speed up to maintain the set point If sufficient natural draft and or combustio...

Page 211: ...0 230 208 230 Volt Single or 3 Phase 1 HP 5 0 VFD 1H1A104C3 VSAD10 460A 460 Volt 3 Phase 1 HP 3 4 VFD 2H1A122C3 VSAD12 230 208 230 Volt Single or 3 Phase 2 HP 8 0 VFD 2H1A124C3 VSAD12 460A 460 Volt 3 Phase 2 HP 3 4 VFD 1 2H1A82O3 VSAD8 230 208 230 Volt Single or 3 Phase 1 2 HP 3 0 VFD 1 2H1A84O3 VSAD8 460A 460 Volt 3 Phase 1 2 HP 1 2 VFD 1H1A81O3 VSAD8 230 115 VAC input 230 Volt 3 Phase Output 1 H...

Page 212: ... boiler room from temperature extremes It is used with Tjernlund Series Commercial Combustion Air Systems The FFP 1 is designed to disrupt power to a combustion air supply blower in the event of a boiler room fire or an extended period where frigid outdoor air supply could cause pipes to freeze Do not wire an FFP 1 into a flue gas exhaust system or interuption of the exhaust system may occur if bo...

Page 213: ...f junction box with 4 conduit Square to round vent pipe adapter PSA 1 Fan Proving Switch FFP 1 Freeze and Fire Protection Limit FFP 1 For combustion air applications only Condensate drain kit Optional Controls CPC 3 Constant Pressure Controller IPS 1 Indoor Pressure Sensor decorative cover fittings TD 2 Pressure Transducer 0 15 to 0 60 w c For draft or Sealed ducted sealed combustion air sensing T...

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