Athena PIM Instructions d'exploitation télécharger pdf (Page 18)

Section III. Basic Operation

3.1 Select Normal or Standby Mode.

3.2 Select Low Temperature Alarm Mode.

3.2.1. Low Temperature Alarm Inhibit : Speaker will

be off and output relay inactive in the event of

low temperature condition (useful during start-up

procedures).

3.2.2. Low Temperature Alarm Active : 30°F (17°C) or

more below IMP setpoint temperature will sound

alarm and energize output relay contacts.

3.3. Turn Power On-Off Switch to ”ON“ position.

3.4. Alarm indications are automatic.

(see detailed operation)

Section IV. Detailed Operation

4.1 Normal or Standby Operation

a. Normal : In this mode the standby feature is

defeated and temperature control is in accordance

with the IMP controller(s) settings.

b. Standby : With the toggle switch in this position,

the standby mode is engaged. This will set the tem-

perature of all IMP controllers operating in automatic

mode to a standby temperature of 200 deg F(93 deg C).

(1) Any IMP controller operating in manual mode will

have its output power level reduced to 1/4 of its

present level.

(2) When SAM and IMP controller(s) are in use at nor-

mal operating temperature [setpoint above 230 deg

F (119 deg C)], switching to standby mode will result

in an over temperature alarm until all zones cool

down to below 230 deg F (110 deg C).

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Athena PIM Instructions d'exploitation Page 18