Lockouts - American Standard AccuLink Platinum 1050 Installation Manual

Restrict Compressor
Heat Only
70º
Control Determines
65º
Heat Source
60º
55º
50º
Compressor Lockout
45º
40º
Aux Heat Only
35º
30º
• Restricted Mode (compressor and auxiliary heat) –
Once enabled an outdoor temperature lockout can be
set to disable compressor heating below and disallow
auxiliary heat operation above. When the outdoor
temperature is above the auxiliary heat lockout,
only compressor heat is allowed. When the outdoor
temperature falls below the compressor heat lockout,
only auxiliary heat is allowed. When the outdoor
temperature is between the compressor heat lockout
and auxiliary heat lockout the system will operate the
same as non-restricted mode, heat pump or auxiliary
heat is allowed based on system load value. There is
a 10° minimum dead band between the compressor
heat lockout and auxiliary heat lockout. Once the
compressor heat or auxiliary heat is locked out,
the outdoor temperature must rise or fall at least 4°
above or below the lockout setting before allowing
compressor or auxiliary heat again.
Restrict Compressor
and Aux Heat
70º
Compressor Only
65º
60º
55º
50º
Comp or Aux Heat Allowed
45º
40º
Aux Heat Only
35º
30º
Minimum 10°
Deadband
AN OUTDOOR TEMPERATURE
BE ENABLED FOR LOCKOUT SETTINGS TO BE
AVAILABLE. Lockout
Installer Setup>Lockout Settings.
11-HD15D1-5-EN
Compressor
Lockout Set to 50º
Compressor
Lockout Set to 40º
Aux Heat
Lockout Set to 50º
SENSOR
options are located
7.5

Lockouts

The 1050 Control has the following lockouts. AN OUTDOOR
TEMPERATURE SENSOR MUST BE ENABLED FOR
LOCKOUT SETTINGS TO BE AVAILABLE. Lockouts can
be enabled in Installer Setup>Lockout Settings.
• Auxiliary Heat Lockout – Once enabled, select an
outdoor temperature which disables auxiliary heat
anytime the outdoor temperature is above the selected
temperature. Compressor heat will be allowed.
• Compressor Lockout - Once enabled, select an
outdoor temperature which disables compressor
heat anytime the outdoor temperature is below the
selected temperature. Indoor heat will be allowed.
NOTE: If enabling Auxiliary Heat Lockout and
Compressor Heat Lockout there is a minimum 10°
dead band between the two settings.
• Defrost Heater Balance Point (W1) – Once enabled,
select an outdoor temperature which disables all
electric heat during defrost above the selected
temperature.
• Defrost Heater Balance Point (W2) – Once enabled,
select an outdoor temperature which disables 2nd
and 3rd stages of electric heat during defrost above
the selected temperature.
• Defrost Heater Balance Point (W3) – Once enabled,
select an outdoor temperature which disables 3rd
stage of electric heat during defrost above the
selected temperature.
Compressor Cooling 1st Stage Lockout [Disabled
•
when zoning is applied] – Once enabled, select an
outdoor temperature which forces 2nd stage cooling
operation.
• Compressor Heating 1st Stage Lockout [Disabled
when zoning is applied] – Once enabled, select
an outdoor temperature which forces 2nd stage
compressor heating operation.
• Furnace Heating 1st Stage Lockout [Disabled when
zoning is applied] – Once enabled, select an outdoor
temperature which forces 2nd stage furnace heating
operation.
Note: If Compressor Lockout is enabled, Compressor
Heating 1st Stage Lockout is disabled.
Note: If Aux Heat lockout is enabled, Furnace Heating 1st
Stage lockout is disabled.
MUST
in the
Platinum 1050
21