User manual

13
ATC32U02 Communicating, Programmable Thermostat - User Manual
Rev.: 24 Feb., 2014
DIRTY FILTER - HEATING
LOW AIR FLOW - HEATING
LOW WATER FLOW - CLG
OVERCHARGED
BAD PRESSURE SWITCH
PREVIOUS
NO DEMAND REDUCTION
FAULT CODE E2
HIGH REFRIG PRESSURE
5.6.6.2 CLEAR FAULT HISTORY
Clear Fault History will clear all fault codes stored
in the thermostat.
5.6.6.3 SYSTEM STATUS
System Status mode allows the user to view the
status of all temperature sensor readings as well
as the operational status of the blower and pump.
NOTE 1: If any temperature reading is out of the
valid range, N/A will be displayed.
NOTE 2: If the connected communicating control
is not confi gured for Pump by installer or no
valid pump information is communicated by the
connected control, N/A will be displayed.
LT1 TEMP 38.1
LT2 TEMP 79.9
COMP DISCHARGE 157.7
HOT WATER EWT 121.5
LEAVING AIR 75.1
LEAVING WATER 73.3
ENTERING WATER 78.5
ECM BLOWER RPM 550
ECM TARGET CFM 800
ECM BLWR STATIC 0.5
PUMP WATTS 140
FLOW RATE GPM 7.4
PUMP SPEED 60%
PREVIOUS
SYSTEM STATUS
5.6.7.1 DEMAND REDUCTION MODE
Through Demand Reduction Mode, you can set the
unit’s limited operation while Demand Reduction is
active.
Adjust the Demand Reduction Mode settings using
the up/down arrow buttons. Press the center
button to save changes.
• No Auxiliary Heat (default): While the
assigned Demand Reduction input is active,
auxiliary heat will not be activated regardless of
the heating demand.
• No 2nd Stage Compressor: While the
assigned Demand Reduction input is active,
the compressor is limited to only part load (1st
stage) operation and auxiliary heat is turned off
regardless of system demand.
• No Operation (default – if either setting is
not present): While the assigned Demand
Reduction input is active, the thermostat
outputs will not be activated for heating or
cooling regardless of the heating or cooling
demand.
NOTE 1: The thermostat must be confi gured for
auxiliary heat by installer to access the Demand
Reduction NO AUXILIARY HEAT option.
NOTE 2: The thermostat must be confi gured
for Multistage by installer to access the Demand
Reduction NO 2nd STAGE COMP option.
5.6.7.2 Climadry™ - DEMAND REDUCTION
This option allows for the customization of
Climadry™ (Dehumidifi cation, optional) operation
while Demand Reduction is active.
Adjust the Demand Reduction Climadry™ settings
using the up/down arrow buttons. Press the center
button to save changes.
• Suspend Climadry™ (default): While the
assigned Demand Reduction input is active,
Climadry™ is turned off, regardless of the
dehumidifi caiton demand.
• Allow Climadry: While the assigned Demand
Reduction input is active, Climadry™ will
operate normally.
NOTE: The thermostat must be confi gured for
humidity control by installer and the DXM2 must
be confi gured for Climadry™ operation to access
Demand Reduction Climadry™ settings.
5.6.7.3 FAN - DEMAND REDUCTION
This option allows for the customization of fan
settings while Demand Reduction is active.
Adjust the Demand Reduction Fan settings using
the up/down arrow buttons. Press the center
button to save changes.
5.6.7 DEMAND REDUCTION - External Sensor Input
Demand Reduction is used to reduce the electric
load while peak utility rates are high. While the
Demand Reduction mode is active, the thermostat
will implement load reduction by limiting operation or
capacity. The thermostat outputs will be limited by
the Demand Reduction option selected below (section
5.6.8.1).
NOTE: The thermostat must be confi gured for
Demand Reduction by installer to access Demand
Reduction settings.