Installation and Service Manual

6-563.8

GENERAL PERFORMANCE DATA - MODELS PTC & BTC

Table 24.1 - Propeller Unit Heater Model PTC General Performance Data

Table 24.2 - Blower Unit Heater Model BTC

General Performance Data

➀ Ratings shown are for elevations up to 2,000'. For elevations above 2,000',

ratings should be reduced at the rate of 4% for each 1,000' 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redatfull-ratedinput.Mountingheightas

measuredfrombottomofunit,andwithoutdeector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.

Model PTC Sizes

55 65 85 110 135 156 180 215 260 310

Btu/Hr Input ➀ 55,000 65,000 85,000 110,000 135,000 155,000 180,000 215,000 260,000 310,000

Btu/Hr Output ➀ 51,150 60,450 79,050 102,300 125,500 144,150 167,400 199,950 241,800 288,300

Condensate Production (Gal./Hr.) 0.3 0.4 0.5 0.7 1.0 1.1 1.3 1.6 1.9 2.3

Entering Airflow (CFM) @ 70°F ➁ 1097 1141 1650 1750 2160 2600 3020 3865 4585 5400

Outlet Velocity (FPM) ➁ 618 650 619 668 719 862 676 699 831 765

Air Temp. Rise (°F) 43 49 44 54 54 51 51 48 49 49

Max. Mounting Height (Ft.) ➁ 12 12 13 13 14 18 15 17 20 19

Heat Throw (Ft.) @ Max. Mtg Ht 43 43 48 46 51 62 53 60 70 67

Motor Type ➂ PSC PSC PSC PSC PSC PSC PSC PSC PSC PSC

Motor HP 1/8 1/8 1/8 1/3 1/3 1/3 1/3 1/2 3/4 3/4

Motor RPM 1440 1440 1550 1075 1075 1075 1075 1075 1125 1125

Model BTC Sizes

215 260 310

Btu/Hr Input ➀ 215,000 260,000 310,000

Btu/Hr Output ➀ 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) ➁ 497-826 601-999 559-930

Air Temp. Rise (°F) 40-70 40-70 40-70

Max. Mounting Height (Ft.) ➁ 9-22 11-26 11-26

Heat Throw (Ft.) @ Max. Mtg Ht 33-77 40-94 39-91

Motor Type ➂ TE TE TE

Motor HP See Table 20.1

Motor RPM 1725 1725 1725