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Leonard NUCLEUS VALVE NV-150-LF, Сервис настройки установки

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Leonard NUCLEUS VALVE NV-150-LF Скачать руководство пользователя страница 29

29

SENSOR

 

TROUBLESHOOTING

 

AND

 

REPLACEMENT

When

 

a

 

sensor

 

is

 

disconnected

 

or

 

no

 

longer

 

in

 

proper

 

working

 

condition,

 

an

 

error

 

message

 

is

 

displayed

 

on

 

the

 

controller

 

(see

 

complete

 

error

 

list

 

starting

 

on

 

page

 

24).

 

If

 

this

 

sensor

 

is

 

on

 

the

 

master

 

printed

 

circuit

 

board

 

(PCB)

 

then

 

the

 

error

 

will

 

be

 

accompanied

 

by

 

a

 

flashing

 

red

 

LED

 

light

 

on

 

the

 

overlay.

 

TURN

 

OFF

 

POWER

 

TO

 

THE

 

NUCLEUS

 

CONTROL

 

BOX

 

BEFORE

 

TROUBLESHOOTING

 

OR

 

REPLACING

 

ANY

 

WIRES

 

AND

 

SENSORS.

 

USE

 

ELECTROSTATIC

 

DISCHARGE

 

SAFE

 

TOOLS

 

WHEN

 

WORKING

 

INSIDE

 

OF

 

THE

 

CONTROL

 

BOX!

1. Determine

 

if

 

the

 

sensor

 

is

 

truly

 

broken

 

and

 

not

 

a

 

simple

 

disconnection.

 

Identify

 

the

 

appropriate

 

sensor

 

wires

 

inside

 

of

 

the

 

control

 

box

 

(see

 

wiring

 

diagram

 

on

 

page

 

28).

 

Check

 

the

 

connection

 

by

 

pulling

 

gently

 

on

 

the

 

wire,

 

best

 

done

 

with

 

needle

 

nose

 

pliers.

 

If

 

the

 

wire

 

can

 

be

 

easily

 

removed

 

from

 

the

 

connector,

 

reinstall

 

and

 

tighten

 

connection

 

with

 

small

 

flathead

 

screwdriver.

 

For

 

pressure

 

sensors

 

ensure

 

that

 

the

 

sensor

 

and

 

wire

 

harness

 

are

 

properly

 

connected

 

as

 

well.

 

2. If

 

the

 

sensor

 

is

 

properly

 

connected

 

to

 

the

 

controller

 

and

 

the

 

condition

 

persists,

 

then

 

the

 

sensor

 

needs

 

to

 

be

 

replaced.

 

Identify

 

the

 

appropriate

 

sensor

 

wires

 

inside

 

of

 

the

 

control

 

box

 

(see

 

wiring

 

diagram

 

on

 

page

 

28).

 

Using

 

an

 

flathead

 

screwdriver,

 

loosen

 

the

 

connections

 

between

 

the

 

board

 

and

 

wires.

 

Remove

 

the

 

wires

 

from

 

the

 

connectors.

3. Remove

 

the

 

disconnected

 

wires

 

from

 

the

 

control

 

box.

 

Begin

 

by

 

loosening

 

the

 

cable

 

gland

 

nut

 

on

 

the

 

bottom

 

of

 

the

 

box.

 

Motor

 

wires,

 

T1,

 

T2,

 

T3,

 

T4,

 

P1,

 

P2

 

wires

 

run

 

through

 

the

 

right

‐

side

 

cable

 

gland,

 

while

 

all

 

other

 

sensors

 

run

 

through

 

the

 

left

‐

side

 

cable

 

gland.

 

Open

 

the

 

cable

 

sleeve

 

and

 

fully

 

remove

 

the

 

defective

 

wires.

 

4. Shut

 

down

 

hot,

 

cold

 

and

 

outlet

 

ball

 

valves

 

and

 

depressurize

 

the

 

pipes.

 

Remove

 

the

 

defective

 

sensor

 

from

 

the

 

piping

 

and

 

install

 

new

 

sensor

 

in

 

its

 

place.

 

For

 

RTD

 

probes

 

new

 

compression

 

fittings

 

are

 

required.

 

Do

 

not

 

overtighten

 

compression

 

nuts

 

before

 

re

‐

pressurizing

 

valve

 

(See

 

Page

 

30).

 

Replacement

 

pressure

 

sensors

 

will

 

also

 

include

 

a

 

new

 

harness.

  

5. Snake

 

new

 

sensor

 

wires

 

through

 

the

 

cable

 

gland.

 

Install

 

replacements

 

wires

 

to

 

their

 

corresponding

 

connectors

 

on

 

the

 

PCB.

 

Refer

 

to

 

wiring

 

diagram

 

on

 

page

 

28

 

for

 

the

 

correct

 

configuration.

 

6. Bundle

 

any

 

loose

 

wires

 

from

 

the

 

new

 

sensor

 

and

 

place

 

into

 

the

 

cable

 

sleeve.

 

Place

 

end

 

of

 

the

 

cable

 

sleeve

 

into

 

the

 

cable

 

gland

 

and

 

tighten

 

the

 

gland

 

nut

 

to

 

secure

 

the

 

sleeve

 

in

 

place.

 

Take

 

care

 

to

 

not

 

put

 

excess

 

strain

 

on

 

the

 

end

 

of

 

the

 

sensor’s

 

wires.

 

7. Open

 

hot,

 

cold

 

and

 

outlet

 

ball

 

valves

 

to

 

pressurize

 

valve.

 

Introduce

 

power

 

to

 

the

 

Nucleus

 

control

 

box

 

and

 

confirm

 

that

 

the

 

replacement

 

sensor

 

is

 

providing

 

proper

 

feedback

 

and

 

data.

  

Содержание NUCLEUS VALVE NV-150-LF

Страница 1: ...ft Cold right Exercise caution when soldering 4 Flush pipes thoroughly after system has been connected 5 This assembly MUST be piped according to LEONARD S REQUIRED PIPING METHOD W 6 Refer to pages 2...

Страница 2: ...CHECK VALVE WARNING The Leonard Nucleus Digital Mixing Valve is an electronically controlled device utilizing DC circuitry The Green Wire Earth Ground Connector MUST be properly grounded to a nearby s...

Страница 3: ...RETURN to be installed on the tempered return line 1 2 NPT Connection Tighten compression fittings by hand and then tighten just 1 8 to 1 4 turn DO NOT overtighten fittings See page 30 for more detai...

Страница 4: ...ater Pressure P1 Inlet Hot Water Temperature T1 Inlet Cold Water Pressure P2 Inlet Cold Water temperature T2 Mixed Water Temperature Sensor T3 and Return Water Temperature Sensor T4 Above the Overlay...

Страница 5: ...ately 10 seconds and the set point will remain unchanged Symbols and indicate whether the outlet temperature is being adjusted higher or lower by the controller Standard Menu Options on Board Equipped...

Страница 6: ...the main control board the wiring to the main board is improper or the sensor is damaged Menu Screen 3 Return Water Temperature Pressing 3 times displays Rtrn temp XXX F or C This screen displays actu...

Страница 7: ...ressure Sensor P2 Note A large negative value displayed at the Cold psi line is an indication that there is no sensor installed to the main control board the wiring to the main board is improper or th...

Страница 8: ...Meters F1 F2 and or 1 additional pressure sensor P3 which are standard 4 20mA inputs See Page 28 for details regarding Daughter Board Menu Screen 7 Optional Temperature Probe 5 T5 Pressing 7 times di...

Страница 9: ...displays actual temperature as measured on RTD T8 if the Nucleus is so equipped with the optional temperature sensors Note A large negative value displayed at the Temp 8 line is an indication that the...

Страница 10: ...n of the actual measured value of pressure PSI on pressure sensor 3 P3 if the Nucleus is so equipped with the optional Pressure Sensor P3 Note A large negative value displayed at the Flow 2 or Psi 3 l...

Страница 11: ...ule 11 Pressing 15X displays BMS Connected N or Y In order for this to be Y or YES the control box needs the following conditions The Leonard supplied ProtoCessor needs to be installed on the main Pri...

Страница 12: ...gative value displayed at the Cur temp line indicates the sensor is damaged or not properly wired to the main control board Note Pressing the key will reverse the order previously shown and allow the...

Страница 13: ...users downstream of the device if proper safety precautions are not adhered to Commissioning the Digital Mixing Valve Overview 1 To enter the commission menu via panel push the keys in the following s...

Страница 14: ...F Commissioning Menu Screen 4 Maximum Outlet Temperature Pressing 3 times displays Max temp This is maximum temperature as measured on the primary outlet temperature sensor of the Nucleus Mixing Valve...

Страница 15: ...Err TTML has elapsed An error that exists past both TTML and TTL will require user recognition to clear error from screen by pressing ENTER If the problem corrects itself during the elapsing TTL time...

Страница 16: ...value to Y yes and press ENTER to confirm Commissioning Menu Screen 9 Minimum Alarm Temperature for Temperature Sensor 5 Note There are four 4 additional RTD temperature probe provisions T5 T6 T7 T8 i...

Страница 17: ...emp 6 min 32F This is the minimum temperature for RTD probe T6 Any temperature below this setting at T6 will trigger an error message Default setting is 32 F Commissioning Menu Screen 12 Maximum Alarm...

Страница 18: ...Temperature for Temperature Sensor 7 Pressing 13 times displays Commissioning Temp 7 max 185F This is the maximum temperature for RTD probe T7 Any temperature above this setting at T7 will trigger an...

Страница 19: ...ter the device and subsequently deliver that high temperature water downstream of the device There is inherent risk in this procedure and it is a feature which allows the user to Disinfect the plumbin...

Страница 20: ...let temperature is below the MIN or above the MAX settings which will automatically end the cycle SEVERE BURNS SEVERE INJURY AND OR EVEN DEATH MAY OCCUR IF SUCH PROVISIONS ARE NOT IN PLACE WHEN SELECT...

Страница 21: ...me to cool via radiation Provisions should be made to manually dump water from the loop if a faster cool down time is desired SEVERE BURNS SEVERE INJURY AND OR EVEN DEATH MAY OCCUR IF SAFETY PROVISION...

Страница 22: ...ng will move the shuttle to allow more cold water into the valve To exit this mode press the ENTER key Once this mode has been exited the valve will revert back to its standard operation Commissioning...

Страница 23: ...not been commissioned Selecting N will also exit commissioning mode and the home screen will then be displayed Commissioning Menu Screen 21 Exit Commissioning Mode Pressing 20 times displays Commissi...

Страница 24: ...set point and is too cold Investigate cause of hot water temperature being too low Check hot water source ERT3 Outlet temperature greater than 5 F below set point Investigate cause ERT4OS Return water...

Страница 25: ...ss than 40 PSI Investigate cause ERT5OS Optional temperature probe 5 disconnected from controller not properly installed to controller or broken Ignore error if no probe is present Check wired connect...

Страница 26: ...ing diagram Replace probe if broken ERF2OS Optional flow sensor 2 disconnected from controller not properly installed to controller or broken Ignore error if no sensor is present Check wired connectio...

Страница 27: ...y cleared from the LCD screen by pressing ENTER If alarm condition is still present the TTML page 15 begins and alarm is re triggered after TTML has elapsed This process can continue until outlet temp...

Страница 28: ...RETURN OUTLET 5V Sig Gnd Pos Sig Neg Pos Sig Neg Pos Sig Neg Pos Sig Neg 5V Sig Gnd DAUGHTER BOARD BOARD WIRING DIAGRAMS MASTER PRINTED CIRCUIT BOARD WIRING DIAGRAM DAUGHTER PRINTED CIRCUIT BOARD WIRI...

Страница 29: ...8 Using an flathead screwdriver loosen the connections between the board and wires Remove the wires from the connectors 3 Remove the disconnected wires from the control box Begin by loosening the cabl...

Страница 30: ...enough to hold the ferrule in place The RTD temperature probe is then inserted through the entire fitting until the end of the probe reaches approximately the center of the desired measured water stre...

Страница 31: ...rovide best performance Frequency of cleaning depends on quality of local water conditions and usage See Maintenance Guide and Record MGR 1000 TROUBLESHOOTING 1 Leaks at stem 2 Leak between valve cove...

Страница 32: ...NV3 4 O RING SHUTTLE 1 KIT 1 NV KIT R NV KIT 1 NV3 KIT R NV3 5 O RING SLEEVE 1 KIT 1 NV KIT R NV KIT 1 NV3 KIT R NV3 6 SEAT HOT SIDE 1 KIT R NV KIT R NV3 7 SHUTTLE 1 KIT R NV KIT R NV3 8 SEAT COLD SID...

Страница 33: ...T KIT 20 LOWER STEM PACKING 2 KIT 2 200 C 21 SCREEN 2 KIT 2 200 C 22 SPRING CHECK 2 KIT 2 200 C 23 O RING COVER 2 KIT 2 200 C 24 O RING UPPER STEM 2 KIT 2 200 C 25 STEM UPPER CHECK 2 4727 26 CHECK BON...

Страница 34: ...clean any sediment or debris that has built up Replace O ring if necessary 7 Inspect and clean all surfaces of the cover Replace cover O rings if necessary 7A If a new Teflon gasket is required remov...

Страница 35: ...oosen the locking nut and then remove the sleeve assembly by unthreading it from the base special tool required Remove Sleeve Assembly from Body Disassemble Sleeve 9B Model NV 300 LF Using 5 32 Allen...

Страница 36: ...LF 2PS MINIMUM PRESSURE DROP FLOW 5 10 15 20 25 30 35 40 45 50 PSI GPM l min 0 3 0 7 0 97 1 4 1 7 2 1 2 4 2 8 3 1 3 4 BAR 0 25 100 144 177 200 222 244 262 280 305 330 GPM 0 95 378 544 669 756 839 922...

Страница 37: ...r from the date of shipment During this period Leonard will at its option repair or replace any product or part thereof which shall be returned freight prepaid to the Leonard factory and determined by...

Страница 38: ...2 Flow Temp 5 min Temp 5 max Temp 6 min Temp 6 max Temp 7 min Temp 7 max Temp 8 min Temp 8 max COMMISSIONED PARAMETERS RECORD KEEPER Use the table below to record all of the commissioned parameters fr...

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