Honeywell L7124U Скачать руководство пользователя страница 3

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L7124U UNIVERSAL OIL ELECTRONIC AQUASTAT® CONTROLLER

69-1232—2

Fig. 2. Position of sensor in immersion well.

WIRING

WARNING

Electrical Shock Hazard.
Can cause serious injury or death.

Disconnect power supply before making wiring
connections to prevent electrical shock or
equipment damage.

All wiring must comply with local electrical codes and
ordinances. Do not exceed the specifications in the
Application section when wiring this control.

IMPORTANT

The terminals on these Aquastat® Controllers
are approved for use with copper wire only.

Follow the appropriate wiring diagrams shown on the
inside of the front cover of the L7124U or in Fig. 3 and 4.

Fig. 3. L7124U single zone connections.

SENSOR WIRES

IMMERSION WELL
CLAMP SCREW

IMMERSION
WELL CLAMP

M16120

HEAT-CONDUCTIVE COMPOUND
(OPTIONAL)

CONTROLLER CASE

BOILER

IMMERSION
WELL

SENSOR

LOW

LIMIT

HIGH

LIMIT

DIFF.

SENSOR

PWR

TSTAT

DSBL

M17776

(HOT)

POWER SUPPLY. PROVIDE DISCONNECT MEANS

AND OVERLOAD PROTECTION AS REQUIRED.

CONTROL CASE MUST BE CONNECTED TO EARTH

GROUND. USE GROUNDING SCREW PROVIDED.

LINE VOLTAGE OIL

BURNER RELAY

LINE VOLTAGE

CIRCULATOR

LOW VOLTAGE

THERMOSTAT

LEGEND: = LED

SENSOR

F01

Содержание L7124U

Страница 1: ... mechanical distance Some models also have a Low Limit and Low Limit Differential adjustment The range of the Low Limit dial is from 110 F to 220 F 43 C to 104 C Rotating the Low Limit potentiometer fully counterclockwise disables the low limit function and turns on the Low Limit Disabled LED The L7124U is designed for use with 24 Vac electronic and electromechanical thermostats and has screw type...

Страница 2: ...e flange on the well 9 Securely tighten the clamp screw IMPORTANT Best thermal response is obtained with a well that snugly fits the sensor Insert the sensor until it rests against the bottom of the well use a well of correct length and bend the wiring if necessary to hold the bulb against the bottom of the well If the well is not a snug fit on the sensor use the heat conductive compound furnished...

Страница 3: ...proved for use with copper wire only Follow the appropriate wiring diagrams shown on the inside of the front cover of the L7124U or in Fig 3 and 4 Fig 3 L7124U single zone connections SENSOR WIRES IMMERSION WELL CLAMP SCREW IMMERSION WELL CLAMP M16120 HEAT CONDUCTIVE COMPOUND OPTIONAL CONTROLLER CASE BOILER IMMERSION WELL SENSOR LOW LIMIT HIGH LIMIT DIFF SENSOR PWR T L2 T TSTAT DSBL LL B B2 B1 C2 ...

Страница 4: ...CULATOR TO ADDITIONAL R845A RELAYS FOR OTHER ZONES LOW LIMIT HIGH LIMIT DIFF SENSOR PWR T L2 T TSTAT DSBL LL B B2 B1 C2 ZR ZC C1 C ZC 1 2 M17777 1 1 2 2 POWER SUPPLY PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED CONTROL CASE MUST BE CONNECTED TO EARTH GROUND USE GROUNDING SCREW PROVIDED LINE VOLTAGE OIL BURNER RELAY LINE VOLTAGE CIRCULATOR LOW VOLTAGE THERMOSTAT T1 LEGEND LED SENSOR...

Страница 5: ...he fixed differential 3 Low Limit Boiler temperature has gone below the low limit setting minus the low limit differential and has not gone above the low limit setting 4 Error The controller has detected an error condition e g open sensor and has shut down the burner output The circulator and ZC output are energized The controller continues to function and automatically restarts if the error condi...

Страница 6: ...System Condition Check Corrective Action Boiler is cold house is cold PWR LED Off Check 120 Vac system power 1A fuse on L7124U PWR LED On TSTAT LED Off Check Thermostat Thermostat wiring PWR LED On TSTAT LED On B burner LED On Check 120 Vac B1 B2 If no replace burner relay If yes check burner and wiring PWR LED On TSTAT LED On LL DSBL LED Flashing Refer to LED diagnostics Table 3 Boiler is hot hou...

Страница 7: ...7 69 1232 2 ...

Страница 8: ... on recycled paper containing at least 10 post consumer paper fibers Home and Building Control Home and Building Control Honeywell Honeywell Limited Honeywell Limitée 1985 Douglas Drive North 35 Dynamic Drive Golden Valley MN 55422 Scarborough Ontario M1V 4Z9 ...

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