SP9-1118 APPLICATION MANUAL For Central Air Conditioning and Heating Systems
S SE & SW E&W NE & NW N Exposure HEAT HEAT BTU COOL COOL BTU 21 Adjustable Dampers Required 20 Orifices Required NONE AREA SQ FT HEAT HEAT BTU = AREA SQ FT .15 .35 .50 NONE .15 COOL COOL BTU AREA SQ FT X ROOM: HEAT HEAT BTU = COOL COOL BTU .50 NONE .15 .35 AREA SQ FT X ROOM: HEAT HEAT BTU = COOL COOL BTU AREA SQ FT X ROOM: HEAT HEAT BTU .50 NONE .15 .35 .50 NONE = COOL COOL BTU AREA SQ FT X ROOM: HEAT HEAT BTU .15 .35 .50 NONE .
SpacePak provides the Kwik-Way Heating & Air Conditioning sizing sheet (see Figure 1.1) to help dealers calculate the heat gain and/or heat loss of a structure to assure maximum comfort for the occupants. The form is easy to use; provides an accurate analysis; and is essential for sizing the structure and selecting the appropriate SpacePak equipment. The small amount of time that is spent in designing the SpacePak system will result in a satisfied customer every time.
. Square footage of partitions — the walls between a conditioned and unconditioned area (such as a living room and attached garage). a cooling-only installation with the indoor fan coil unit to be located in a vented attic.
Total Exp wall: On this line, fill in the total square footage of exposed wall. Simply multiply linear feet of exposed wall by ceiling height in each room. Example (cooling-only): Based on example house construction, the following factors would be selected: DESCRIPTION FACTORS Double-Hung Windows With Blinds North.........................................................20 East & West..............................................50 South........................................................
Line 1 Windows (cooling): In the column AREA SQ FT, fill in the total square footage of all exposed windows and glass doors, based on the direction they are facing. Multiply the square footages by the appropriate factors and enter results in the column COOL BTU (see Figure 1.5). Multiply the square footage by the factor and enter result in the column COOL BTU(HEAT BTU). Line 7 Ceiling/Roof and Line 8 Floor: In the column AREA SQ FT, fill in the total square footage of the ceilings and floors.
Line 11 Appliances: For appliances, the factor is a constant 1200. Enter this in the column COOL BTU. NOTE: For the room-by-room analysis, this 1200 factor would be included in the kitchen heat gain.
2470 1648 3 .5 1.2 1200 8 Floor 9 Ventilation (Mechanical)/Infiltration 11 Appliances 1.3 1.15 20539 23620 30706 COOL 21 Adjustable Dampers Required 20 Orifices Required HEAT 1.1 3658 INDOOR UNIT : 2224 2558 3325 COOL 278 105 525 416 300 600 COOL BTU .35 1.97 .50 NONE 1.97 .15 .35 2.03 .50 2.03 BASE LOAD FACTOR HEATING = 3555 HEAT HEAT BTU HEAT HEAT BTU 1914 1423 1636 2127 COOL 115 90 450 168 600 COOL BTU NONE .15 .35 0.92 .50 NONE 1.06 1.
SECTION 2: ROOM-BY-ROOM ANALYSIS Line 17 Base Load Factors: To obtain the base load factors, divide the Total Structure COOL BTU on Line (HEAT BTU on Line 13) by the recommended number terminators on Line 15 and enter result on Line 17. Complete the heat gain (heat loss) for each room on the Kwik-Way sheet (see Figure 2.1), following the same procedures you used for calculating the Total Structure Heat Gain (Loss). Complete each appropriate calculation through Line 14. Line 18 Recommended No.
56 20 2470 1648 3 .5 1.2 1200 8 Floor 9 Ventilation (Mechanical)/Infiltration 11 Appliances 1.3 1.15 20539 23620 30706 COOL 1978 900 1200 1235 6175 567 412 2452 1700 2800 1210 COOL BTU 21 Adjustable Dampers Required 20 Orifices Required .15 1.1 2224 2558 3325 COOL 3658 .35 1.97 2 .50 NONE 1.97 .15 .35 2.03 .50 2.03 HEAT HEAT BTU 1914 1423 1636 2127 COOL 115 90 450 168 600 COOL BTU 1 NONE .15 .35 0.92 1 .50 NONE 1.06 1.
Line 20 Orifices Required: You must select the terminal-orifice combination from Figure 2.5 which produces close to the number of terminators required on Line 19 for each room. This information is also available in Table 5 on the back of the Kwik-Way sheet. DESIRED NUMBER OF TERMINALS * Example (see Figure 2.4): Bedroom 4 requires 1.68 terminators, which is equal to 168% capacity.
systems. The four and five ton system should be considered and handled as two separate smaller units. This necessitates the installation of the plenum tee a minimum of 18" from the unit (see Figure 3.1). No supply runs should be installed between unit outlet and tee. ROOM TERMINATORS Terminators should be located in the ceiling or floor for vertical discharge.
