Troubleshooting; Cooling Sizing Guide - Friedrich Wallmaster WET10A33A Service & Parts Manual

Thru - the wall air conditioners
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TROUBLESHOOTING

ROOM AIR CONDITIONER UNIT PERFORMANCE TEST DATA SHEET
JOB NAME______________________ TECH'S NAME_________________________
DATE___________ MODEL#_______________ SERIAL #______________________
CHECK THE INSTALLATION
IS A CHASIS GASKET INSTALLED?
IS THE FRESH / EXHAUST AIR VENT OPEN?
IS A FRIEDRICH SLEEVE INSTALLED?
IS A FRIEDRICH OUTDOOR GRILLE INSTALLED?
IS MAINTENANCE BEING PERFORMED?
ELECTRICAL
LINE VOLTAGE (STATIC)
START UP VOLTAGE
AMPERAGE DRAW (COOL)
AMPERAGE DRAW (HEAT)
COMPRESSOR
LOCKED ROTOR AMPS
RUNNING AMPERAGE DRAW
INDOOR CONDITIONS
RELATIVE HUMIDITY (RH) INDOOR
RETURN AIR TEMPERATURE (INDOOR)(COOL)
RETURN AIR TEMPERATURE (INDOOR) (HEAT)
OUTDOOR TEMPERATURE
OUTDOOR AMBIENT TEMPERATURE
RH OUTDOOR RELATIVE HUMIDITY
INTAKE AIR TEMPERATURE (OUTDOOR)(COOL)
INTAKE AIR TEMPERATURE (OUTDOOR)(HEAT)
COOLING OR HEATING AREA
AREA W______ * L_______ = FEET SQUARED
FOR A GENERAL GUIDE REFER TO SIZING GUIDE TO THE RIGHT
FOR EXACT LOAD CALCULATIONS CONSULT MANUAL J OR M.
64
ACCEPTABLE
Figure 713 (Test Data Sheet)
NOT ACCEPTABLE
YES
NO
_____
____
_____
____
_____
____
_____
____
_____
____
_____ VOLTS
_____ VOLTS
_____ AMPS
_____ AMPS
_____ AMPS
_____ AMPS
_____%
_____F
_____F
_____F
_____%
_____F
_____F

Cooling Sizing Guide

AREA TO BE
APPROXIMATE
CONDITIONED
COOLING BTU
IN SQ. FT.
100 - 150
150 - 250
250 - 300
300 - 350
350 - 400
400 - 450
450 - 550
550 - 700
700 - 1000
1000 - 1200
1200 - 1400
1400 - 1500
1500 - 2000
2000 - 2500
Guide based on normal
room insulation, average
number of sun exposed
windows and two person
occupancy.
1. If heavily shaded, reduce
cooling Btus required by 10%
2. If very sunny, increase cool-
ing Btus required by 10%
3. Add 500 Btus per person over
2 people
4. Add 4,000 Btus if the area is
a kitchen
Figure 714 (Cooling Sizing Guide)
REQUIRED
5000
6000
7000
8000
9000
10000
12000
14000
18000
21000
23000
24000
30000
34000

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