Friedrich KUHL R-410A Service Manual page 84

FRIEDRICH ROOM UNIT HEAT PUMPS
WALLS: (Linear Feet)
2" Insulation
Average
WINDOWS & DOORS (Area, sq. ft.)
Single Glass:
Double Glass:
INFILTRATION - WINDOWS & DOORS: AVG.
CEILING: (Area, Sq. Ft.)
Insulated (6")
Insulated (2")
Built-up Roof (2" insulated
Built-up Roof (1/2" insulated)
No Insulation
FLOOR: (Area, Sq. Ft.)
Above Vented Crawl space
Insulated (1:)
Uninsulated
* Slab on Ground
1" Perimeter insulation
* Based on Linear Feet of outside wall
Multiply total BTU/HR/°F X 30 and plot on the graph below at 40°F. Draw a straight line from
the 70 base point thru the point plotted at 40°F. The intersection of this heat loss line with the
unit capacity line represents the winter design heating load.
HEATING LOAD FORM
Loose
TOTAL HEAT LOSS PER °F BTU/HR/°F
BTU/HR PER
°F TEMP. DIFFERENCE
Lin. Ft. x 1.6
Lin. Ft. x 2.6
Sq. Ft. x 1.13
Sq. Ft. x 0.61
Lin. Ft. x 1.0
Lin. Ft. x 2.0
Sq. Ft. x 0.07
Sq. Ft. x 0.10
Sq. Ft. x 0.10
Sq. Ft. x 0.20
Sq. Ft. x 0.33
Sq. Ft. x 0.20
Sq. Ft. x 0.50
Lin. Ft. x 1.70
Lin. Ft. x 1.00
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