Emergency Operation - Daikin Skyair FHC35K Service Manual

Si-71A
3.2

Emergency Operation

Emergency
You can operate the system manually by changing the setting of the emergency switch (SS1) on the indoor
Operation of Indoor
unit's PC board from "Normal" to "Emergency." When switched however the equipment cannot regulate
Units temperature. The table below contains a list by model of actuators for manually operating indoor units in
time of emergency.
„ Method of switching in time of emergency
Note: 1. Do not operate from remote controller during emergency operation.
2. Operate the switch only when the power supply is turned OFF.
Emergency
Turn off the power supply and set the emergency switch to "Heat" for heating or "Cool" for cooling.
Operation of
Operation will be started manually when you turn the power back on. ("Heat" cannot be set for a cooling
Outdoor Units only air-conditioner.)
Concerning
If a safety device should be actuated during emergency operation, all actuators are turned OFF. If you
Emergency reset after waiting for 3 minutes, operation will start again. Emergency operation cannot be carried out if the
Operation
PC board itself is defective.
Note: For emergency operation, be sure to set emergency operation for both the indoor and outdoor units. Do not
attempt to operate the equipment from the remote controller during emergency operation. Emergency
operation is computer-controlled, and therefore cannot be carried out if the microcomputer is not operating
properly.
The table below contains a list of actuators for manually operating the equipment in time of emergency.
Compressor
4-WAY VALVE
Outdoor Unit Fan
Electronic Expansion Valve
Indoor Unit Fan
Drain Pump
During emergency heating operation, defrosting is carried out for 3 minutes every hour. (4-way valve and
outdoor unit fan are turned OFF.)
Explanation of Field Set
Model
FH(Y)C
FH(Y)
FUY
FVY~F, FVY~L
FH(Y)B
FH(Y)K
FAY
Actuator
Existence of DIP Switch, Jumper and BS
Fan
{
{
{
{
{
{
{
Cooling
ON
OFF
H Fan Speed
200 Pulses
H Fan Speed
ON
Drain Raising
{
{
{
—
{
{
{
Heating
ON
ON
H Fan Speed
200 Pulses
H Fan Speed
ON
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