8
IOM - 7602-4 Communicating Service Tool
4.0 Service Mode
4.1
MANUAL OPERATION
Manual Operation mode allows service personnel to manually
command operation for any of the thermostat outputs, blower
speed, as well as pump speed or valve position to help
troubleshoot specific components.
NOTE 1
: The ECM Airflow adjustment will not be present if the
connected communicating control (DXM2) is not configured for
ECM (section 3.1).
NOTE 2
: The Pump Speed adjustment will not be present
if the connected communicating control (DXM2) is not
configured for Pump (section 3.4).
NOTE 3
: The Valve Position adjustment will not be present if
the connected communicating control (DXM2) is configured for
Valve (section 3.5).
4.2
CONTROL DIAGNOSTICS
Control Diagnostics mode allows service personnel to view
the status of all physical inputs, switches and temperature
sensor readings, as well as the operational status of the heat
pump at the thermostat.
Navigate between diagnostic screens using the left/right
arrow buttons.
NOTE
: The Pump Status will not be present if the connected
communicating control (DXM2) is not configured for Pump
(section 3.4).
SERVICE MODE
MANUAL OPERATION
CONTROL DIAGNOSTICS
DIPSWITCH CONFIG
FAULT HISTORY
CLEAR FAULT HISTORY
SELECT OPTION
PREVIOUS SELECT
MANUAL OPERATING MODE
Y1
COMM OUTPUT
OFF
Y2
COMM OUTPUT
OFF
W
COMM OUTPUT
OFF
O
COMM OUTPUT
OFF
G
COMM OUTPUT
OFF
H
COMM OUTPUT
OFF
DH
COMM OUTPUT
OFF
ECM AIRFLOW
0
PUMP
SPEED
0%
TEST MODE
OFF
SELECT OPTION
PREVIOUS SELECT
CONTROL STATUS
TEMPERATURES
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
CONTROL VOLTAGE 26.4
ECM BLOWER RPM 550
ECM TARGET CFM 800
ECM BLWR STATIC N/A
PREVIOUS NEXT
CONTROL DIAGNOSTICS
HP SWITCH CL
LOC SWITCH CL
Y1 PHYSICAL INPUT ON
Y2 PHYSICAL INPUT OFF
W PHYSICAL INPUT OFF
O PHYSICAL INPUT ON
G PHYSICAL INPUT ON
H PHYSICAL INPUT OFF
EMERG SHUTDOWN OFF
NIGHT SETBACK OFF
OVR INPUT OFF
PREVIOUS NEXT
CONTROL DIAGNOSTICS
PUMP OPERATION
PUMP SPEED 60%
PUMP WATTS 140
FLOW RATE GPM 7.4
PREVIOUS
