Thermo Technologies SMT 400 User Manual

Page 18

3.5.2 BOOST OPTION

Pressing and holding the

key for 4 seconds will select the boost

option.

Pressing the

key allows you to activate the boost function.

Pressing the

key allows you to cancel the boost function.

Note: This option will only operate if the timer temperature parameters have
been programmed for A1, (auxiliary output 1). The unit will choose the
maximum temperature which has been programmed for A1, [i.e. 45°C in
this example, as 45°C (timer 1) > 40°C (timer 3)].
The auxiliary output will remain switched on until:

(a)

the appropriate tank sensor (

in this example) has reached 45°C, or

(b)

a one hour period has elapsed.

If no times have been set when the

key has been pressed, the unit will

display the message: “BOOST UNAVAILABLE PLEASE REFER TO
MANUAL”
If this screen is displayed, then any one of the following reasons will prevent
the boost function from being activated:

(1)

AUX 1 Relay has been manually switched off (see section 3.7, page 20).

(2)

AUX 1 Relay has been manually switched on (see section 3.7, page 20).

(3)

A1 timer temperature has not been set.

(4)

A1 Relay has not been selected.

(5)

A1 timer is already running.

TIMER 1

TIMER 2

TIMER 3