29
Table 3. Alarm Faults
Alarm
Mgr
Alarm
ID
Category
Alert
Level
(Severe,
Low,
Info)
Local
Display:
Alert Title
Local Display: Alert
Detailed Description
M3-Specific
Description
IMC Error Description
IMC Action
27
Cooling
Low
Strike3 Low
Press S98 Open
Comp3
Compressor is off. Check
charge, fans and coil. Switch
opened three times during a
demand.
Strike3 Low
Press S98 Open
Comp3
S98 (Low Press. 3) has opened three
(default) times during a demand. The
number of times is defined in ECTO
1.13 or 4.15.
Compressor 3 locked off. Requires
a reset or two short pushes of
pushbutton to restore.
28
Cooling
Low
Low Press S97
Open Comp4
Compressor is off. Check
charge, fans and coil.
Low Press S97
Open Comp4
S97 (Low Press. 4) is open.
Compressor4 off
29
Cooling
Low
Strike3 Low
Press S97 Open
Comp4
Compressor is off. Check
charge, fans and coil. Switch
opened three times during a
demand.
Strike3 Low
Press S97 Open
Comp4
S97 (Low Press. 4) has opened three
(default) times during a demand. The
number of times is defined in ECTO
1.13 or 4.15.
Compressor 4 locked off. Requires
a reset or two short pushes of
pushbutton to restore.
30
Cooling
Low
Overflow
Switch
Drain Pan is Overflowing.
Check for blocked drain and
condensate lines.
Overflow Switch
Overflow Switch
31
Cooling
Low
Strike3 Unit
Shutdown
S149
S149 input is open, condensate
overflow switch; multiple
times
Overflow Switch
Overflow Switch
32
Cooling
Low
Freeze Stat S49
Open Comp1
Compressor is off. Check
freezestat, air flow, charge,
coil, air filter and outside air
temperature.
Frz Stat S49 Open
Comp1
S49 (Freezestat 1) is open.
Compressor 1 off.
33
Cooling
Low
Strike3 Freeze
Stat S49 Open
Comp1
Freezestat has opened 3 times
during a demand. Compressor
is locked out.
Strike3 Frz
Stat S49 Open
Comp1
S49 (Freezestat 1) has opened 3
(default) times during a demand. The
number
of times is defined in ECTO 4.04.
Compressor 1 locked off. Requires
a reset or two short pushes of
pushbutton to restore.
34
Cooling
Low
Freeze Stat S50
Open Comp2
Compressor is off. Check
freezestat, air flow, charge,
coil, air filter and outside air
temperature.
Frz Stat S50 Open
Comp2
S50 (Freezestat 2) is open.
Compressor 2 off.
35
Cooling
Low
Strike3 Freeze
Stat S50 Open
Comp2
Freezestat has opened 3 times
during a demand. Compressor
is locked out.
Strike3 Frz
Stat S50 Open
Comp2
S50 (Freeze stat 2) has opened 3
(default) times during a demand. The
number of times is defined in ECTO
4.04.
Compressor 2 locked off. Requires
a reset or two short pushes of
pushbutton to restore.
36
Cooling
Low
Freeze Stat S53
Open Comp3
Compressor is off. Check
freezestat, air flow, charge,
coil, air filter and outside air
temperature.
Frz Stat S53 Open
Comp3
S53 (Freeze stat 3) is open.
Compressor 3 off.
37
Cooling
Low
Strike3 Freeze
Stat S53 Open
Comp3
Freezestat has opened three
times during a demand.
Compressor is locked out.
Strike3 Frz
Stat S53 Open
Comp3
S53 (Freeze stat 3) has opened three
(default) times during a demand. The
number of times is defined in ECTO
4.04
Compressor 3 locked off. Requires
a reset or two short pushes of
pushbutton to restore.
38
Cooling
Low
Freeze Stat S95
Open Comp4
Compressor is off. Check
freezestat, air flow, charge,
coil, air filter and outside air
temperature.
Frz Stat S95 Open
Comp4
S95 (Freeze stat 4) is open.
Compressor 4 off.
39
Cooling
Low
Strike3 Freeze
Stat S95 Open
Comp4
Freezestat has opened three
times during a demand.
Compressor is locked out.
Strike3 Frz
Stat S95 Open
Comp4
S95 (Freeze stat 4) has opened three
(default) times during a demand. The
number of times is defined in ECTO
4.04.
Compressor 4 locked off. Requires
a reset or two short pushes of
pushbutton to restore.
40
Heating
Severe
Return Air Over
Heat Limit
Return air temperature (RT16)
exceeded heating limit set.
Check space conditions and
sensors.
Return Air Over
Heat Limit
Return air temperature (RT16) exceeded
heating limit set in ECTO 5.06.
Heating demand ignored. No
heating.
