TJERNLUND AUTO-DRAFT VSUB Series, Manual

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COMPLETE VSUB-SERIES UNIVERSAL BLOWER SYSTEM SOLUTIONS
This installation manual does not contain any vent system design documentation. Installation and use of Tjernlund controls like the
CPC-2 Constant Pressure Controller, VFD Series Variable Frequency Drives, EXP-4 Appliance Interlock Expansion boards, UC-1
Universal Control or MAC1E and MAC4E Multiple Appliance Controls are not covered by this manual. Please refer to those installa-
tion manuals for details.
VSUB-SERIES FAN PERFORMANCE CURVES
VSUB Blower performance was independently tested by an accredited AMCA certified testing facility.
Selection of a VSUB Blower as a Draft Inducer involves determination of the maximum volume of gas to be handled, the density of
the gas and the maximum static pressure which the fan must overcome. Using the VSUB Blower as a combustion air intake or com-
mercial clothes dryer vent blower, involves the determination of the maximum volume of air to be handled and the maximum static
pressure which the fan must overcome.
Variable speed VSUB Blowers can operate at virtually any point to the left of the performance curve. For sidewall termination applica-
tions add 0.60" W.C. to vent system resistance to accommodate the effects of wind loading.
Consideration must be given to the temperature of the gases being handled and the elevation above sea level of the installation when
selecting a VSUB Blower. Blower performance curves are based on standard air conditions @ sea level.
Please feel free to contact us for application and model selection assistance by calling 800-255-4208 or email us at
fanmail@tjfans.com. Vent layout or other information can be faxed to 651-426-9547.
2
0
0
CFM (STD AIR 70 DEGREES F)
STATI
C
PRESSURE
I
N
W.
C.
0
0
100 200 300 400 500 600 700 800 900 1000
1000 900 800 700 600 500 400 300 200 100
0.5
1
1.5
2
2.5
3
3.5
4 4
3.5
3
2.5
2
1.5
1
0.5
VSUB8 PERFORMANCE
3
2.5
2
1.5
1
0.5
0
0 500 1000 1500 2000 2500
CFM (STD AIR 70 DEGREES F)
STATI
C
PRESSURE
I
N
W.
C.
0
0
0.5
1
1.5
2
2.5
3
VSUB12 PERFORMANCE
2500 2000 1500 1000 500
4.5
4
3.5
3
2.5
2
1.5
1
0.5
0
0 500 1000 1500 2000 2500 3000 3500 4000 4500
CFM (STD AIR 70 DEGREES F)
STATI
C
PRESSURE
I
N
W.
C.
0
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
4500 4000 3500 3000 2500 2000 1500 1000 500
VSUB16 PERFORMANCE
4.5
4
3.5
3
2.5
2
1.5
1
0.5
0
0 500 1000 1500 2000 2500 3000 3500 4000 4500 5000 5500 6000
CFM (STD AIR 70 DEGREES F)
STATI
C
PRESSURE
I
N
W.
C.
6000 5500 5000 4500 4000 3500 3000 2500 2000 1500 1000 500 0
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
VSUB20 PERFORMANCE