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Appendix - Fujitsu FO20R Series Installation Instructions Manual

Variable speed r-410a heat pump outdoor units
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12.1 Agency Performance Audit Test Instructions
Performance audit testing a 20 SEER variable
speed heat pump rated combination requires an
Digital Control Center (according to the AHRI rating
database) as an accessory to obtain the rated
performance. Utilize the following instructions to
properly operate the system during audit tests.
1. Install the rated system consistent with this
manual and ASHRAE 37.
2. Leak check and charge the rated system per
the instructions found in this manual.
3. Wire the outdoor unit, indoor air mover/furnace,
indoor coil EXV control (when necessary), and
Digital Control Center according to the following
wiring diagrams.
Digital
Contol Center
E1 E2
Air Handler
BR/W
E1
PR
E2
R
R
BR
C
AUX
C
N.C.
Field-Installed
Switch
AUX
Factory Standard
1
E1 E2
Furnace
E1
Coil w/EEV
E2
R
R
C
C
Y1
Y1
Y2
Y2
AUX
N.C.
C
Switch
AUX
1
4. Supply high and low voltage to the system.
5. Once each control is powered turn off the
Dehumidification feature:
a. Pressing the "Settings" button on the home
screen followed by pressing the "humidity"
button.
b. Once in the "humidity" screen, select "Yes"
next to the "Enable Dehumidification ?" label.
c. To turn dehumidification off press the orange
up or blue down arrows once.
R
C
Heat Pump
E1
E2
R
C
Digital
Control Center
C
R
Heat Pump
E1
E2
R
C
Field-Installed
Factory Standard

12.0 APPENDIX

d. The "Yes" should turn to a value of "No."
6. Once the dehumidification feature is turned
off, the Aux 1 configuration needs to be set to
normally closed (N.C.) as to permit a closed
switch attached to the Aux 1 contacts to keep
the system operating. Thereby an open switch
would indicate to the system to shut down:
a. Press the back arrow in the bottom left of
the dehumidification screen to return to the
"settings" screen.
b. Press the "installer" button in the bottom right
corner of the "settings" screen.
c. Press the "air handler" or "furnace" button.
d. Once in the "air handler settings" or "furnace
settings" screen select "N.C." next to the
"Aux Input #1 Config" label.
e. Change the "Aux #1 Config" type to "N.C." by
pressing the orange up or blue down arrows
at the bottom of the screen twice.
f. Select "Off" next to the "Aux Input #1 Config"
label.
g. Change the "Aux #1 Config" value from "Off"
to "Shutdown" by pressing the orange up
button at the bottom of the screen two times.
After each press of the orange up button
the value next to the "Aux #1 Config" label
should change.
7. Entering the Test Mode
a. Press the back arrow in the bottom left of the
screen 3 times to return to the home screen
showing the inside temperature.
b. Press the "Service" button on the home
screen.
c. Press the "ODU check-out" button in the
bottom right corner of the "service" screen to
enter the "installer checkout" screen.
d. Select the desired mode of operation by
pressing "Off" next to the "Var Speed ODU
Test" label and then the orange up arrow
or blue down arrow at the bottom of the
"installer checkout" screen.
NOTE: Any faults must be resolved before
the system will start. See the troubleshooting
guide in this manual for assistance.
NOTE: If the unit does not start when the
"start" button is pushed verify the switch
attached to the Aux 1 input on the air
handler or furnace control board is closed
and no alarms are active.
NOTE: In order to change from heating
mode to cooling mode or vice versa the
system must first be turned off by pressing
the blue down button until "stop test"
75

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