Ingersoll-Rand ReliaTel, Manual, Page: 35 / 176

RT-SVD03L-EN 35
System on LED
AM
Mo
Colon pulses
when input is connected
Part Number - SEN01522
Cooling-RTRM-J6-8
What the readings mean
• O ON N
System is in the “ “cco oo olliin ng g” ” mode and actively
cooling. The unit could be economizing or have
one or both compressors on. If the unit is a heat
pump, the reversing valve is energized as well.
• O OF FF F
System is not actively cooling. It may or may
not be in the “
“cco oo olliin ng g” ” mode.
• P PU UL LS SIIN NG G
N No otte e:: Any controls.
This indicator can mean one or more of the following:
• CC1 or CC2 opens during cooling, or is open when a
call for compressor occurs. The unaffected circuit
will still run. With RTRM version 4.0 or greater, CC1
or CC2 circuit must open on 3 consecutive cycles.
On the 4th trip, the unit will lockout.
• CPR1 disable or CPR 2 disable input has opened
during a compressor cycle each time a compressor
starts (within the first 3 minutes) for 3 consecutive
cycles. It locks out on the fourth cycle. The
unaffected circuit will still run.
• Supply air temperature is invalid and unit is VAV or
CV with modulating reheat.
Mechanical ZSM
• Zone temperature input failure after a successful
input.
• Both heating and cooling setpoint inputs have
failed or are not attached (such as when using a two
wire sensor on terminals 1 & 2).
Programmable ZSM
The ZSM has failed to communicate for 15 consecutive
minutes after successful communication has occurred.
RTRM J6
DC
VOLTS
SERVICE
SYSTEM
COOL
HEAT
COMMON
Cool LED
Mo
Snowflake flashing indicates
active cooling mode
E2 flashing indicates a COOL FAIL
Heating-RTRM-J6-7
What the readings mean
• O ON N
System is actively heating.
• O OF FF F
System is not actively heating.
• P PU UL LS SIIN NG G
– Gas heat: If any failure occurs such as loss of
flame, limit switch trip, flame rollout etc, this
indication is present. Further diagnostics are
available by examining the ignition module
LED. See the gas heat section for detail.
– Electric heat: These units have safety limit
switches in the electric heat control circuit.
Should a limit switch trip, no diagnostic will
occur. the HEAT indication will stay ON.
– Heat pump: Unit is in the “ “E EM ME ER RG GE EN NC CY Y
H HE EA AT T” ” mode. If the compressor disable circuit
or CC1, CC2 circuits create a lockout during
“
“h he ea attiin ng g” ” mode, a COOL FAIL (pulsing)
indication will occur, not a HEAT FAIL (pulsing)
indication. See COOL indications for details.
– Any unit: Supply air temperature sensor failure
and unit is CV with modulating heat or
modulating reheat.
R Re elliia aT Te ell ™ ™ R Re effrriig ge erra attiio on n M Mo od du ulle e ((R RT TR RM M))