A
DJM3
IOM-17
4 of 27 Mar 99 R3
TABLE
OF
CONTENTS
INTRODUCTION ............................................................................................................................................................... 5
CONTROLLER RATINGS ..................................................................................................................................................... 5
CONTROLLER DESCRIPTION .............................................................................................................................................. 6
TERMINALS .................................................................................................................................................................................. 6
DIP
SWITCHES .............................................................................................................................................................................. 7
INDICATION
AND
DIAGNOSTIC
LIGHTS ........................................................................................................................................ 7
ADJUSTMENT
POTS ...................................................................................................................................................................... 8
MULTIMETER
TEST
POINTS .......................................................................................................................................................... 9
SYSTEM
TIMINGS ......................................................................................................................................................................... 9
TEMPERATURE CONTROL ................................................................................................................................................. 9
CALCULATED
SETPOINT
(SPC) ...................................................................................................................................................... 9
DISCHARGE
TEMPERATURE
SENSOR
(D
TEMP) .......................................................................................................................... 10
MODULATING
ROOM
RESET ...................................................................................................................................................... 10
Multiple Room Sensors .................................................................................................................................................... 11
ROOM
RESET
AUTHORITY
TABLE ............................................................................................................................................... 11
BMS
RESET ................................................................................................................................................................................. 12
AMBIENT
RESET
(
CONTINUOUS BLOWER OPERATION ONLY
)................................................................................................................. 12
MAKE/BREAK
RESET
AND
OVERRIDE ........................................................................................................................................... 13
“OR” and “V” Override (Day Operation only) .................................................................................................................. 13
“X” and “Z” Override (Day and Night Operation) ............................................................................................................. 13
OPERATION ................................................................................................................................................................... 14
DAY
/
NIGHT
OPERATION ........................................................................................................................................................... 14
FAN
CONTROL ............................................................................................................................................................................ 14
DAMPER
CONTROL .................................................................................................................................................................... 14
BURNER
CONTROL ..................................................................................................................................................................... 14
LOW
LIMIT .................................................................................................................................................................................. 15
Resetting Low Limit .......................................................................................................................................................... 15
SERVICE ......................................................................................................................................................................... 15
SERVICE
MODE ........................................................................................................................................................................... 15
BURNER
SET
UP .......................................................................................................................................................................... 15
TEMPERATURE
CONTROL .......................................................................................................................................................... 22
AIR
BALANCING .......................................................................................................................................................................... 22
PRE‐PURGE
PROBLEM ................................................................................................................................................................ 22
INDUCED
VOLTAGE
ON
REMOTE
CONTROL
WIRING .................................................................................................................. 23
CALIBRATION ................................................................................................................................................................. 23
D
ISCHARGE
S
ENSOR
........................................................................................................................................................................ 23
D
ISCHARGE
S
ETPOINT
C
ALIBRATION
................................................................................................................................................... 23
R
OOM
S
ENSOR
C
ALIBRATION
............................................................................................................................................................ 23
BMS
S
IGNAL
C
ALIBRATION
............................................................................................................................................................... 24
SENSOR
TABLE ........................................................................................................................................................................... 24
FAN OPERATION FLOWCHART........................................................................................................................................ 25
HEAT OPERATION FLOWCHART ...................................................................................................................................... 26
UPGRADING DJM3.2 OR 3.3 TO DJM3.4 ......................................................................................................................... 26
