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T T e e c c h h n n i i c c i i a a n n C C o o n n t t r r o o l l M M e e n n u u
Continued from previous page
Heat
FRC DFT
FRC DFT
Pump
PRESS ENTER
PRESS ENTER
Only
Control Menu
Heat
EEV TEST
Pump
OPEN <500>
Only
EEV TEST
OPEN <XXX>
Heat
LSOV TEST
Pump
COOL? YES
Only
TEST IN PROGRESS
COOL/HEAT/COOL
TEST COMPLETE
EVACUATION?
Heat
PRESS ENTER
Pump
Only
EVACUATION
EEV OPEN <500>
REMOVE OD POWER
BEFORE SERVICING
50
NOTES: Forced Defrost
1. System must be running with demand from the thermostat.
2. FRC DFT TEST can be initiated in heat mode.
3. Press ENTER to begin Forced Defrost.
4. Execute Forced Defrost following Defrost (Defrost terminates on Coil
temperature or maximum time override of 15 minutes).
TEST IN PROGRESS
TEST IN PROGRESS
5. When test begins, display TEST IN PROGRESS on line 1 and Coil
CTS <value>
CTS <value>
temperature value on line 2. Note: Home Screen, under System Status
will display DEFROST.
6. When test is complete display TEST COMPLETE for 10 seconds.
7. If there is a defrost fault condition, stop test and send alert to the Alert
TEST COMPLETE
TEST COMPLETE
Menu.
Note: Screens will update as the test proceeds.
8. Force Defrost is selectable from either the Control Menu or F-DFT
button on AOC.
EEV Test Mode Notes
1. The EEV test is allowed during Idle, Cooling, Heating and Forced
Defrost Modes.
2. Select the OPEN or CLOSE test by navigating left or right.
EEV TEST
3. Press ENTER from EEV TEST screen to begin EEV test.
CLOSE <500>
4. Check mark indicates test is in progress and valve position will be
displayed on line 2. Note: Screens will update as test proceeds.
5. OPEN test terminates after 30 seconds.
6. At end of test remove check mark in front of OPEN and return to
controlling valve position or last known position if system is idle.
7. CLOSE test terminates after 90 seconds.
EEV TEST
8. At end of test remove check mark in front of CLOSED and return to
CLOSE <XXX>
controlling valve position or last known position if system is idle.
9. If there is an EEV fault condition, stop test and send alert to the Alert
Menu.
LSOV TEST
HEAT? YES
LSOV Test Notes
1. System must be running with demand from the thermostat.
2. LSOV TEST can be initiated in heating mode or cooling mode. Note:
During HEAT mode, only heat-mode LSOV test is allowed and
avaialble. *Note: During COOL mode, only cool-mode LSOV test is
allowed and available. *
TEST IN PROGRESS
3. Press ENTER to begin test.
HEAT/COOL/HEAT
4. During TEST IN PROGRESS, display a check mark in front of the current
mode but update screen text as mode changes per test sequence.
5. Test sequence will pulse the SOV coil in the order displayed, and wait
10 seconds between each directional pulse.
6. When test is complete, display TEST COMPLETE for 10 seconds.
TEST COMPLETE
7. If there is an LSOV fault condition, stop test and send alert to the Alert
Menu. Note: LSOV test will not available during defrost.
* During LSOV TEST, if a mode change request is received, the LSOV test
will terminate.
Evacuation Notes
1. Press enter to execute EVACUATION mode.
2. Entering EVACUATION puts the OD system into a hard lockout state.
3. Send alert Err 187.00 to communicating thermostat.
4. Ignore all thermostat demand until hard lockout is cleared by power
cycle.
5. Open EEV and remain at the full open position until power is cycled
(open ID EEV – Phase2).
6. During EVACUATION mode, display EEV valve position as OPEN <500>
on line 2 (EEV shall be at 500 step position).
7. If there is an EEV fault condition, stop test mode and send alert to the
alert menu.
8. Technician to follow on-screen note to 'Remove power before
servicing. "
Note: See Evacuation Mode write-up on Control Notes page.
4TWL9048A-SF-1C-EN
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