COOLING LOAD GUIDE-SQUARE FEET METHOD
ROOM AIR CONDITIONERS
To make sure you | choose | the | right | size | unit, use | thts “COOLING | LOAD GUIDE - |
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| SQUARE | FEET |
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METHOD.” | It | is a | qurck, | easy | means | of computing | capacity. |
for eItremR III exposure. shadmg. rnsulat~on and bulldmg conslruchon. AHAM CoolrngLoad EslrmaleForm RAG1 musl be used
INSTRUCTIONS:
1.Determine Ihe area to be cooled In square feel and locate that pomt on the lefl side of chart
2.Move horizonlally across to the center line 01 Band A, E or C according lo the condition of the ceiling in Ihe area to be cooled.
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band
Band
3.From center of band move within the band to leh for more northerly exposure or right for more westerly exposure.
4.From this point, read down to bottom of charl to determlne required Btulhr oulpul. Write the Btulhr figure in the space indicated below.
5.- | Btu/hr |
| (from | number | 4 above). |
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6.- | Locate | your | geographic | area | on | Inset | map | and mulhply | ||||||||
| faclor shown by hqure m number 5. |
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room | air |
| conditioner | IS Intended | prrmarlly | for | nlghl- | |||||||||
| time coohna. subtract 30% lfrom fiaure In number 6) |
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6.__- | Subtract | 3d | Btuihr | from | figure | ln<number | 7 (or | 6) | for | |||||||
| each | hear | foot | of wall separatmg | the area lo be cooled | |||||||||||
| from | another | cooled | room |
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6.__ | If more | lhan | Iwo | people | occupy | area, |
| add 600 | t3tuihr | per | ||||||
| person (to II ure VI number 8); if only one person. | |||||||||||||||
lo.- | subtracl | 600 | i tu/hr. |
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Add | 4000 | Btulhr | (to | figure | m number | 9) | If | area | lo | be | ||||||
| cooled | Includes | kitchen. |
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For best | results. | a room | conditionmg | unll or | units | wllh | a cooling |
capacity rafmg close ?o that estimated above should be selected.
A smaller capacity unit operating continuously ~111 contrrbute more to comfort than a larger capacity unit operatmg Intermit- tently.
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