American-standard asystat 570 User Manual download pdf (Page 4)

4

Pub. No. 12-5018-01

69-1324

Then set the FAN switch:

Auto: Normal setting for most homes.

Some systems may delay the fan

turning on and off with the equip-

ment.

On: The fan runs continuously. Use for

improved air circulation and air

quality.

Emergency Heat

The Emergency Heat feature allows you to

“turn on” the electric heat section of the

system by moving the system switch to the

Em. Ht. position. The indicator flashes and

FAN

Auto On

FAN

SWITCH

M10273

points to Em Ht when the system is in

emergency heat mode. The

indicator may

also point to Aux Ht if the system calls for

additional back-up heating.

Set

Room

M10287

INDICATOR

Em Ht

Aux Ht

▲

▲

▲

Auxiliary Heat

The auxiliary heaters assist the heat pump

under normal conditions when low outdoor

temperature occurs. The

indicator points to

Aux Ht when the auxiliary heating equipment

operates.

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