American Standard YK-IOM-2, Установка, эксплуатация и обслуживание

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4
Step Test Mode
The step test mode is initiated by shorting across the “TEST”
terminals, marked test 1 and test 2 on the unit’s low voltage
terminal strip (LTB), for two (2) to three (3) seconds and then
removing the short.
When the test mode is initiated, the light on the UCP will blink
and the system will begin the first test step, and turn on the in-
door fan. (See test mode table)
To continue to the next step, re-apply the short across the test
terminals for 2 to 3 seconds.
The unit may be left in any test step for up to one hour. If al-
lowed to remain in any test step for more than one hour, the
test mode will terminate and control will revert to the zone sen-
sor. As you continue to apply and remove the short across the
test terminals, the unit will move through the steps according
to the table below.
To terminate the test mode, cycle the unit power at the unit
disconnect or continue stepping through the modes until the
UCP’s indicator light glows constantly.
Auto Test Mode
— The auto test mode is initiated by installing a jumper be-
tween terminals marked TEST 1 and TEST 2 on the LTB.
The unit will start in step 1 and cycle through the test steps
one time, changing every 30 seconds.
— When the test mode is initiated, the light on the UCP will
blink and the system will begin the first test step, and turn
on the indoor fan. (See test mode table)
— At the end of the auto test mode, the indicator light will glow
constantly and control will revert to the zone sensor.
— The unit can be left in any one of the test steps, by remov-
ing the jumper. It will remain in this step for up to one hour.
If allowed to remain in any test step for more than one hour,
the test mode will terminate and control will revert to the
zone sensor.
— To terminate the test mode, cycle the unit power at the unit
disconnect.
Resistance Test Mode
The resistance test mode is initiated by applying the appropri-
ate resistance value across the “Test” terminals marked TEST
1 and TEST 2 on the LTB.
— When the test mode is initiated, the light on the UCP will
blink and the system will begin the test step selected by the
resistance being applied across the test terminals. (See test
mode table)
— The resistance values are indicated in the Resistance
Value Chart below.
— After selecting the desired test step, and applying the ap-
propriate resistance across the test terminals, the unit will
start.
— The unit can be left in this step for up to one hour. If al-
lowed to remain in any test step for more than one hour, the
test mode will terminate and control will revert to the zone sen-
sor.
— To terminate the test mode, remove the resistance, and
cycle the unit power at the unit disconnect.
Test Mode Table
Step Mode Fan Econ C1 C2 Heat 1 Heat 2 Heat 3 Defrost Em Heat
1 Fan On On Min Off Off Off Off Off Off Off
2* Econ On Open Off Off Off Off Off Off Off
3 Cool 1 On Min On Off Off Off Off Off Off
4 Cool 2 On Min On On Off Off Off Off Off
5 Heat1 On Min Off Off On Off Off Off Off
6* Heat 2 On Min Off Off On On Off Off Off
7* Heat 3 ( Not Applicable on Electric/Electric or Gas Units )
8** Defrost ( Not Applicable on Electric/Electric or Gas Units )
9** Em Heat ( Not Applicable on Electric/Electric or Gas Units )
* With Optional Accessory ** With Heat Pump
Note: Steps for optional accessories and modes not present in unit, will be skipped.
Resistance Valves Chart
STEP MODE Ohms
1 FAN ON 2.2K
2* ECONOMIZER 3.3K
3 COOL 1 4.7K
4 COOL 2 6.8K
5 HEAT 1 10K
6* HEAT 2 15K
* With Optional Accessory
7* HEAT 3 22K
** With Heat Pumps
8** DEFROST 33K
Note: Steps 7,8 & 9 are not applicable
9** EM HEAT 47K
on Electric/Electric or Gas Units