Manual S Equipment Sizing Checker

What this tool does

Check entered equipment output against 140% heating and 115% cooling upper limits. Uses user-entered output at design conditions. Does not select or certify equipment.

How to use the Manual S Equipment Sizing Checker

1. Enter or select heating loss (btu/h).
2. Enter or select cooling gain (btu/h).
3. Enter or select selected heating output (btu/h).
4. Enter or select selected cooling output (btu/h).
5. Read the calculated result; change any measurement to compare alternatives.

Formula

heating ratio=selected heat/load; cooling ratio=selected cool/load; upper caps=140% and 115%

loss

Heating loss (BTU/h)

gain

Cooling gain (BTU/h)

heat

Selected heating output (BTU/h)

cool

Selected cooling output (BTU/h)

Uses user-entered output at design conditions. Does not select or certify equipment.

Worked example

For manual s equipment sizing checker, the following measurements illustrate the exact method: Heating loss (BTU/h): 30000; Cooling gain (BTU/h): 24000; Selected heating output (BTU/h): 40000; Selected cooling output (BTU/h): 27000.

Results explained

Heating upper-limit check

Heating upper-limit check from the formula above. Uses user-entered output at design conditions. Does not select or certify equipment.

Cooling upper-limit check

Cooling upper-limit check from the formula above. Uses user-entered output at design conditions. Does not select or certify equipment.

Heating load percentage

Heating load percentage from the formula above. Uses user-entered output at design conditions. Does not select or certify equipment.

Cooling load percentage

Cooling load percentage from the formula above. Uses user-entered output at design conditions. Does not select or certify equipment.

Frequently asked questions