TJERNLUND VSUB20SS Datasheet

Job Name:
Contractor:
Arch./Engr.:
Description:
The VSUB20SS Variable Speed Universal Blower is suitable
for providing combustion air or sidewall or vertically venting
heating appliances, dryers and ovens. Suitable for use on con-
densing equipment. Can be installed indoors or outdoors.
Use with the CPC-3 Constant Pressure Controller, Closed
Loop VFD and TD-Series Pressure Transducer for an
Automatic-Variable Speed system which will modulate to
always deliver the perfect amount of draft or combustion air.
For an Adjustable-Fixed Speed system, use an Open Loop
VFD to manually adjust speed of the VSUB.
Housing Construction:
Constructed of 14-gauge, Type 316L stainless steel with con-
tinuous welds. The blower outlet rotates 180° for installation
flexibility. The motor chassis slides away from the housing on
polyethylene guides for easy motor and impeller access.
Impeller:
Backward inclined, Type 304 stainless steel, Class 1 impeller
is both dynamically and statically balanced with permanently
attached balancing weights.
Motor:
Three phase, 3 HP, 208-230/460 VAC, TEFC, EPACT High
Efficiency Rated, arctic-duty, thermal overload protected, per-
manently lubricated and sealed ball bearing.
Standard Equipment:
• 4" x 4" weatherproof 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
• TD-3 Pressure Transducer (+0.10" to -0.10" w.c.)
For "Open" (room pressure) combustion air sensing
• VFD-Series Variable Frequency Drives
Temperature Rating:
U.S. and Canada 575°F / 300°C
Tjernlund Products, Inc. • 1601 Ninth Street • White Bear Lake, MN 55110 • (651) 426-2993 • (800) 255-4208 • FAX (651) 426-9547 • www.tjernlund.com
Submitt
Submitt
VSUB20SS V ariable S
VSUB20SS V ariable S
al Dat a Sheet
al Dat a Sheet
peed Universal
peed Universal
Equipment Rep:
Prepared By:
Date:
Listings:
ETL # 56826
UL 378 - Draft Equipment / Variable Speed
UL 705 - Power Ventilators
CSA-CAN3-B255-M81*
*Not Listed for use on condensing equipment in Canada.
Warranty:
2 year mechanical
Model VSUB20SS
Power hp
Amps A
Voltage VAC
Weight
VSUB20SS
VSUB20
A 19 7/8"
B 14"
C 14 7/16"
D 15 1/8"
E 32 11/16"
F 19 11/16"
G 45 3/16"
H 47 3/16"
I 26 7/16"
J 27 15/16"
K 20 1/8"
L 33 1/2"
M 15 3/8"
N 23 7/16"
O 43 1/2"
P 10"
ØA
INCLUDED SQUARE
TO ROUND ADAPTER
208-230 Volt 460 Volt
3 3
8.8 - 8.2 4.1
3x208-230 3x460
370 Lbs. / 168 Kgs.
K
L
M
END VIEW
D
E
ØF
B
C
MOUNTING
LOCATION (4)
I
J
TOP VIEW
P
O
N
G H
P/N 8513040