14
Enter adjustment Mode by pressing ""Up", "Down" and "I" buttons simultaneously for 3 seconds.
"I" button changes display feature.
"Up" and "Down" buttons change settings.
D
S I
P
L
A
Y
HL
FP
ELL
duu
ASC
tPL
tPt
PC
F-C
* When not using Outdoor Reset Kit
NOTE: When using an outdoor reset kit refer to the Honeywell lnstruction Booklet.
Error Code
Cause/Action
Err1
Sensor fault; check sensor.
Err2
ECOM fault; check EnviraCOM
Err3
Hardware fault; replace control.
Err4
B1 fault; check B1 wiring/vollage.
Err5
Low Line; Check L1-L2, 110 Vac.
Err6
Fuse; Check ECOM wires, replace fuse.
EEPROM, HL, LL, Hdf. Ldf: reset to
Err7
default values. Restore desired settings.
Repeated B1 fault (no voltage present
at B1 when output is turned on water
Err8
temperature above 260F when voltage
present at B1); check B1 wiring/voltage.
FOR L7248L
Set High Limit temperature from 130 to 240 F (5-116 C)
Freeze Protection. Turn on or off. "On" fires boiler at 40 F.
External Low Limit. "Off" if not using.
Zr lnput External DHW. Off if not using.
Anti Short Cycle Timeout (seconds) set "OFF" or up to 5 Min.
Thermal Purging Limit Temperature (F or C) "OFF" to disable.
Thermal Purging Time Delay (minutes) shown only if tPL is enabled.
Pump Cycling - pump runs for 15 sec after 5 days of no activity.
set "ON" or "OFF"
Temperature Units (F or C)
After 60 seconds without any button inputs, the control will
automatically return to the RUN mode.
To re-enter the adjustment mode follow the instructions above.
ln the adjustment mode pressing the "l" button repeatedly will
cycle through the display feature if you need to change a previous entry.
wiring
TM
F
E
A
T
U
R
E
DESCRIPTION
Boiler Temperature -
High Limit -
Low Limit -
Low Limit Differential -
Local Thermostat Status -
Enviracom Thermostat Status -
Error Code -
Degrees Fahrenheit -
Degrees Celsius -
DISPLAY
ln the RUN mode, the Aquastat will flash.bt. (boiler temp)
followed by the temperature (i.e., 220), followed by °F or °C.
To read boiler settings, press the I key to read the parameter of
interest.
For example, Press I High Limit
(HL) is displayed, followed by a three-digit number, i.e.,220,
followed by °F or °C.
TR Series
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