Document NEoK2yB3Ojj4M4EvgKQbGyavy

Heaters, Unit York Heating and Ventilating Cprp. 1502 Locust Street :: PHILADELPHIA Unit Heaters--Unit Fans--Rotary Ventilators--Stationary Ventilators--Cyclone Dust Collectors--Damper Quadrants--Blast Gates--Drying Trays--Radiator Brackets--Sheet Metal Work and Light Structural Iron Fabrication. YORK "WELDED COIL" UNIT HEATER SPECIAL FEATURES The coils are welded entirely, therefore there are no joints to leak. The coils are guaranteed for operation up to 200 lbs. steam pressure and are tested to 1000 lbs. hydrostatic pressure. All eight sizes of York Units are designed for standard motors operating at standard speeds. Direct connection to motors by flexible couplings is supplied at less cost titan belt or chain drive. Full housed centrifugal fans of the double inlet type give the high outlet velocity so essential to positive dis tribution. Self-aligning, dust-proof ball bearings are standard for fan shaft mounting. Units are narrow in width, permitting unobtrusive placing in tiie shop. Operates equally well on vacuum, low or high pressure steam. Unit will beat and ventilate simultaneously, if desired. Base of the unit is open on all four rides, hence air is drawn from the floor, where it is naturally coldest. This simplifies connection to outride air when same is desired, for it can easily be made by a rectangular duct from any one side. Rigid discipline in manufacturing assures unfailing and economical operation from units so carefully designed. OPERATION - Air enters the unit at the base from all four sides, passes upward around the welded pipe coils, through the fan and ts then distributed by the outlets in any direction desired. Unit may be automatically controlled by a thermostatic switch. OPERATING ECONOMIES It is not necessary to run York Unit Heaters con tinuously to obtain an appreciable amount of beat, as is the case with horizontal unit heaters or a blower system. In the morning the units can be run for a short tune to bring the room up to the proper temperature and to start the air in circulation. The power can then be shut off and the circulation thus started will continue (although at a slower rate). Capacities and Dimensions Size Unit R.P.M. 25 1750 1160 35 1750 1160 45 1450 870 50 1450 870 55 1450 870 60 1450 870 A.P.M. H.P. Motor 2780 1800 5480 3620 9650 5850 10950 6550 12800 7700 14360 8600 V. H 'B 5 7% l'/2 7Vi 2 10 2 Recirculating Air at 60 F. Entering Unit B.t.u.* Final Lbs. Cond. Temp. per Hr. 208,000 137.5 147,000 146.0 217. 153 411,000 137.8 296,500 146.3 428 309 676.000 132.0 462.000 142.5 707 481 741.000 129.2 504.000 140.2 772 525 950.000 136.8 635.000 147.0 990 661 1,037,000 134.5 1080 694.000 144.5 723 140 830 280 1650 360 2300 360 2520 520 3200 520 3500 A MOO 47 1900 88 2450 88 2500 88 3300 88 3400 88 BC DXH 17 16 86 m. 14 17 20 86 ny. 14 30 24 M3 i<p/, 20 30 24 M3 isy. 20 30 24 M3 m 20 30 26 M3 w, 20 2 4 2 3 3 3. Note--To get BASIC Rating (i.e., 0 entering and 5 lb. pressure), multiply B.t.u. given by 1.35. See 1924 Guide, page 339, for B.t.u. Constants. 424 Sq. Ft. Heating Surface Equiv. Direct Radiation Weight with I Motor r No. of Outlets B.t.u. Cond. per Hr. Actual Ecjuiv. Direct Radiation York Heating and Ventilating Corp Heaters, Unit A--Damper that permits recirculating air in building. B--Fresh air opening, which is closed when damper A is opened. Outside opening protected by wire screen. C--Warm air outlets. Since they have a square base they may be pointed in other directions than those shown. D--Opening at floor line for entrance of exhaust gases. E--Duct for discharging exhaust gases to outdoors. The above is standard arrangement for motor, exhaust air outlet and steam headers but their rela tive position can be reversed if conditions require. RATINGS No. 30-G UNIT For Steam Pressure of 5 Pounds Recirculating Air o at 60 Deg. rahr. o Entering Unit 2 cu I Basic Data Air at 0 Deg. Fahr. Entering Unit YORK WELDED COIL UNIT, No. 30-G - This self-contained unit combines the means for heating and ventilating garages and exhausting foul gases. The air to be wanned is drawn through the heating coils by two (2) of the fans, and discharged positively in desired directions. This air may be drawn fresh from out-of-doors, or recirculated within the buildings at will by a regulation of dampers. The third fan, with its intake at the floor level, withdraws and exhausts to the outside the poison ous gases that collect along the floor when motors are run. When a number of engines are running and throw off an objectionable quantity of gases, the exhaust pipe damper and-fresh air damper are opened. The garage will then be quickly ventilated. At times when little or no gases are produced, the exhaust pipe damper may be closed and the recirculating damper opened. The heater then recirculates the air within the building, so that fuel is saved when no ventilation is needed. When more heating capacity is needed than that provided by the units necessary for ventilation, unit heaters without the exhaust fan are added to complete the required total. Garage Unit No. 32-G has the same B.t.u. capacity as the No. 30-G but twice the exhaust ca pacity and requires a 2 h.-p. motor for 1750, a 1H h.-p. for 1450 and a 1 h.-p. for 1160 r.p.m. Dimensions are the same as No*. 35 unit on opposite page. YORK-FIN UNIT For Steam Pressures up to 15 lbs. R .P .M . || Cu. Ft. per Min. Warm Air B.t.u. per Hr. Final Temp. Cond. per H r. 1 B.t.u. per Hr. Final Temp. 1 Cond. per Hr. Cu. Ft. A ir per M in. Exhausted 1750 2780 I'/I 208,000 137.5 2171 281.000 104-8 294/ 1700 1450 2290 I 178.200 1413 186/ 241,000 109.9 252# 1410 1160 1800 % 147,000 146.0 (53* 198.600 116.1 207/ 1130 870 1340 '/< M6.IOO 152.0 121/ 157,000 124.2 164/ 850 May be used on high or low pressure steam, vapor, vacuum or hot water system. Note--When facing outlet openings. RH means motor is on Right; LH means motor is on left. Unless otherwise specified, RH will be furnished. APPLICATION Recommended only for plants with overhead returns fed by low pressure supply. York Welded Coil. Floor Mounted Unit Heaters are preferable for all other conditions. Ratings, Specifications and Dimensions Recirculating Air at si'5 2 2 o o 60 F, Entering Unit and 5/ Steam Press. 1N s 1to CL OC CL < 2 CL X Sq. Ft. Heating Surface Outlet Openings s.J (3 =o 6 Z N* N 2 Outside cA of Angles Dimensions BcDE F > e 13 3 CO cL V.3I s co 102 1750 1160 3000 2000 V, V, 157,000 112.0 164/ 116,500 118.5 121/ 109 630 2 ii'/4x 11% 370 33 43 16 15 3% 3% 2" 2* 103 1750 1160 4100 2710 1 'H 231,500 116.5 241/ 172,000 124.3 179/ 164 930 3 ll'/.xll'A 460 45 43 20 15 3% 3% 'y 2" 104 1750 M60 6200 4100 I'/i % 381.000 122.0 397/ 270.000 127.2" 281/ 246 1520 4 iiy.* ny. 550 63 43 20 15 3% m y 1' 162 1160 870 7800 5880 3 1 433.000 115.4 452/ 358.000 121.3 373/ 273 1740 2 18'/,* 18% 750 69 61 25 22% 3% 3% y 2*- 425