Brochure

6
6-170.9
GENERAL PERFORMANCE AND ELECTRICAL DATA - MODEL BTC
Table 6.1 - Blower Unit Heater Model BTC General Performance Data
➀ Ratings shown are for elevations up to 2,000 ft. For elevations above 2,000 feet, ratings should be
reduced at the rate of 4% for each 1,000 feet above sea level (in Canada see rating plate). Reduction of
ratings requires use of a high altitude kit.
➁ Data taken at 65°F ambient and unit fired at full-rated input. Mounting height as measured from bottom
of unit, and without deflector hoods.
➂ All motors used are produced, rated and tested by reputable manufacturers in accordance with NEMA
standards and carry the standard warranty of both the motor manufacturer and Modine. All motors are
totally enclosed and all single phase motors have built-in thermal overload protection.
➃ Amp draw data shown is operating amp draw at incoming power. For units that use a field installed
accessory step-down transformer as noted, the amp draw shown is the primary side operating amp
draw. For sizing of circuit protection for equipment with transformers, please refer to the National Electric
Code.
➄ For BTC models, add the Motor Amp Draw and Control Circuit Amp Draw to get the Total Unit Amp Draw.
➅ Transformers for blower models are typically smaller than those used for propeller models, as the
transformer is not needed for the blower motor. Size 310 uses a PSC power exhauster motor, further
reducing the required transformer size.
Model BTC Sizes
215 260 310
Btu/Hr Input j 215,000 260,000 310,000
Btu/Hr Output j 199,950 241,800 288,300
Condensate Production (Gal./Hr.) 1.6 1.9 2.3
Entering Airflow Range (CFM) 2645-4628 3198-5597 3813-6674
Outlet Velocity (FPM) k 497-826 601-999 559-930
Air Temp. Rise (°F) 40-70 40-70 40-70
Max. Mounting Height (Ft.) k 9-22 11-26 11-26
Heat Throw (Ft.) @ Max. Mtg Ht 33-77 40-94 39-91
Motor Type l TE TE TE
Motor HP See Table 7.1
Motor RPM 1725 1725 1725
Table 6.3 - Blower Model BTC Control Circuit Amp Draw mn
Table 6.4 - Blower Model BTC Accessory Transformer Size (kVA) o
Supply Voltage
Model Size 115V/1ph 230V/1ph 208V/3ph 230V/3ph 460V/3ph 575V/3ph
215-260 2.15 1.08 1.19 1.08 0.54 0.43
310 1.05 0.53 0.58 0.53 0.26 0.21
Supply Voltage
Model Size 208V/3ph 230V/1 or 3ph 460V/3ph 575V/3ph
215-260 0.50 0.50 0.50 0.50
310 0.50 0.25 0.25 0.25
Table 6.2 - Blower Model BTC Motor Amp Draw mn
Supply Voltage
Motor HP 115V/1ph 230V/1ph 208V/3ph 230V/3ph 460V/3ph 575V/3ph
1 14.00 7.00 3.20 3.20 1.60 1.30
1-1/2 15.00 7.50 4.60 4.80 2.40 1.90
2 - - 6.00 5.80 2.90 2.30
3 - - 8.40 7.80 3.90 3.20
5 - - 13.60 12.30 6.20 5.10