Nor-Lake NL708 User Manual

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NL708 (XWA11V)

Walk-In Temp / Door /Alarm / Light Module

1. General Description 1

2. General Warnings 1

3. Interface 2

4. Temp Alarms Setting 3

5. Programming 3

6. Light Management 4

7. Installation and Mounting 4

8. Electrical Connections 5

9. Use of the Programming “Hot Key” 5

10. Alarm Signals 5

11. Technical Data 6

12. Connections 6

13. Parameter Map 7

14. Parameter List 8 Quick Sheet 9 Parts Lists 10 Dwg. No. A32907 Light Manager with Options 11 Dwg. No. B10007 Wiring Diagram Light Manager with Options 12 Dwg. No. A32942 Light Manager Retrofit Kit 13 Dwg. No. B10020 Wiring Diagram Retro Kit 14 Occupancy Sensor for Light Operation Settings 15 Remote Buzzer Installation 17

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XWA11V

Walk-In Temp / Door /Alarm / Light Module

1. GENERAL DESCRIPTION

Model XWA11V, 100x64 m m format, is a microprocessor-based controller, suitable for temperature monitoring and alarming in a walk -in cooler or freezer. It is provided with two (2) Relay Contacts to control lights and an external alarm. It is provided with one (1) NTC probe input for temperature measurement. The unit has 2 Digital Inputs, one for a Door Switch and the 2nd as an option al Panic S witch. See the cata log for optional accessories. One 5Pin Input allows the user to program the parameter list with a “Hot Key” (see

section 9)

Note: The default settings are listed in the back of this manual. They are set for Coolers (Medium Temp). For Freezers (Low Temp) you MUST Change th e ALL and ALU settings. See Section 4.0

2. GENERAL WARNINGS

2.1 PLEASE READ BEFORE USING THIS MANUAL

• This manual is part of the product and should be kept close to the instrument for easy and quick reference.

• The instrument shall not be used for purposes different from those described hereunder. It cannot be used

as a safety device.

• Check the application limits before proceeding.

Note: If equipped with a battery backup, the battery must be installed after the walk-in has reached its operating temperature.

2.2 SAFETY PRECAUTIONS

• Check if the supply voltage is correct before connecting the instrument.

• Do not expose the back of the instrument to water or moisture: use the controller only within the operating limits

avoiding sudden temperature changes with high atmospheric humidity to prevent the formation of condensation.

• Warning: disconnect all electrical connections before performing any maintenance operation.

• Fit the probe where it is not damaged by the end-user. The instrument must not be opened.

• In case of failure or faulty operation send the instrument back to the distributor (see address) with a detailed

description of the fault.

• Consider the maximum current that can be applied to each relay (see Technical Data).

• Ensure that the wires for probes, loads and the power supply are separated and far enough from each other, without

crossing or intertwining, or you may get bad temperature readings.

• Be sure to seal any J-box with RT sealant to prevent cold and moisture intrusion.

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3. INTERFACE

3.1 KEY FRONT PANEL OPERATION

In Programming Mode press to select a parameter or to confirm an operation. Press and hold this key for more than 5 s to turn the controller OFF. Press and hold this key for more than 1 s to turn the controller back ON.

Press to see the HIGH Temp ALARM (ALU parameter) Press to see the LOW Temp ALARM (ALL parameter) In Programming Mode press to browse parameter codes.

Press to increase the displayed value. Press to mute the buzzer (+ relay) when an ALARM is happening. Hot key programming: with the instrument on, insert the hot key and then press the UP button.

In Programming Mode press to browse parameter codes. Press to decreases the displayed value.

Switch ON and OFF the light of the cold room

KEY COMBIN ATIONS: PRESS SIMULTANEOUSLY

To lock and unlock the Keyboard. To enter the Programming Mode.

To exit the Programming Mode. To enter a new value for the HIGH Temp ALARM (ALU). To enter a new value for the LOW Temp ALARM (ALL).

3.2 USE OF LEDS Each LED function is described in the following table:

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4. TEMP ALARM SETTINGS

4. TEMP ALARMS SET T I NG

4.1 HOW TO SET THE MIN TEMPERATURE ALARM

• To modify the minimum (LOW) Temp ALARM: hold the keys pressed for 3 s until the minimum Temp alarm is displayed.

• Change the value using the UP and DOWN keys.

• Press the SET key to confirm the new value and exit.

4.2 HOW TO SET THE MAX TEMPERATURE ALARM

• To modify the max (HIGH) Temp ALARM: hold the alarm is displayed.

• Change the value using the UP and DOWN keys.

• Press the SET key to confirm the new value and exit.

5. PROGRAMMING

5.1 HOW TO CHANGE A PARAMETER VALUE MAIN MENU

1. Enter the Programming Mode by pressing the SET and DOWN key for 3s ( and will start blinking).

2. Select the required parameter. By using the UP or DOWN KEY

3. Press the “SET” key to display its value (now only the

LED is blinking).

4. Use “UP” or “DOWN” to change its value.

Press “SET” to store the new value and move to the following parameter.

To exit: Press SET + UP or wait 15 s without pressing a key. NOTE: the set value is stored even when the procedure is exited, by waiting the time-out to expire.

5.2 THE HIDDEN MENU (PR2)

The hidden menu includes all the parameters of the instrument.

5.2.1 HOW TO ENTER THE HIDDEN MENU (PR2)

1. Enter the Programming Mode by pressing the Set + down key for 3s (

2. When a parameter is displayed, relea se an d re-press the SET + down for more than 7s.

3. The Pr2 label will be displayed immediately followed from the HY parameter. NOW YOU ARE IN THE

HIDDEN MENU.

4. Select the required parameter as above

5. Press the “SET” key to display its value (Now only the

6. Use “UP” or “down” to change its value.

7. Press “SET” to store the new value and move to the following parameter.

To exit: Press SET + up or wait 15s without pressing a key. NOTE: the set value is stored even when the procedure is exited by waiting the time-out to expire.

5.2.2 HOW TO MOVE A PARAMETER FROM THE HIDDEN MENU TO THE FIRST LEVEL AND

VICEVERSA

Each parameter present in the HIDDEN MENU can be removed or put into “THE FIRST LEVEL” (user level) by pressing “SET + down”. In HIDDEN MENU when a parameter is present in First Level the decimal point LED is on.

5.3 HOW TO LOCK THE KEYBOARD

1. Keep pressed for more than 3s the UP and DOWN keys.

2. The “POF” message will be displayed and the keyboard will be locked. At this poi nt it will be poss ib le

only to see the Set Point or the MAX or MIN Temp stored

3. If a key is pressed more than 3s the “POF” message will be displayed.

LED is blinking).

keys pressed for 3 s until the max Temp

and starts blinking).

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5.4 TO UNLOCK THE KEYBOARD

Keep pressed together for more than 3s the UP and DOWN keys. The “PON” message is displayed

6. LIGHT MANAGEMENT

6.1 TIMED REGULATION: I1L = Y

With i1L = y the light remains on at least for the LHt parameter. The LHt timer is re-initialized every time the light button is pushed. With LHt=0 the light remains on until the light button is pushed again.

The light is switched on every time one of the following conditions happens:

• the door is open (i1F = dor)

• the presence sensor is activated (i2F = LHt)

• the light button is pushed

The light is switched off when all the following conditions happen:

• the LHt timer is exhausted

• the door is closed (i1F = dor)

• the presence sensor is de-activated (i2F = LHt)

• Light button regulation: i1L = n

The lights will flash (for 2 minutes) every 20 seconds for the FLH time (0-5 min) at the end of the LHt time as a warning that the lights are about to turn off (for incandescent and LED lights only).

The light button has a higher priority tha n d igital inputs therefore:

- if the light was switched on by button the digital input can not modify its status.

- if the light was switched on by digital input, the light button can modify its status.

7. INSTALLATION AND MOUNTING

7.1 MOUNTING OF XWA11V – PR10000

The XWA11V must be mounted on vertical panel, in a J-Box (Steel City PN 683711/2) or equal or wall mounted using an appropriate enclosure.

The Ambient Temp range for correct operation is 32 – 131°F (0-55°C). Avoid installation in places subject to strong vibrations, corrosive gases, excessive dirt or humidity. The same recommendations apply to probes.

8. ELECTRICAL CONNECTIONS

The instrument is provided with ¼” fast-on terminal blocks to connect cables with a cross section up to .110” for the digital and analog inputs. Relays and power supply have a Fast-on connection (.250”). For supply connections, use 14 AWG or larger copper or CU wire only rated at least 90˚C (194˚F). Before connecting cables make sure the power supply complies with the instrument requirements. Separate the probe cables from the power supply cables, from the outputs and the power connections. Do not exceed the maximum current allowed on each relay and in case of heavier loads use a suitable external relay.

N.B. Maximum current allowed for all the loads is 15A.

8.1 PROBE CONNECTIONS

The probe shall be mounted with the bulb upwards to prevent damages due to casual liquid infiltration. It is recommended to place the thermostat probe away from air streams to correctly measure the average room temperature. The probe can be extended up to 300 ft. Check calibration when running long lengths over 100ft.

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9. USE OF THE PROGRAMMING “HOT KEY “

9.1 HOW TO PROGRAM A HOT KEY FROM THE INSTRUMENT (UPLOAD)

1. Program one controller with the front keypad.

2. When the controller is ON, insert the “Hot key” and push UP key; the "uPL" message appears followed a by flashing “End”

3. Push “SET” key and the End will stop flashing.

4. Turn OFF the instrument remove the “Hot Key”, then turn it ON again.

NOTE: the “Err” message is displayed for failed programming. In this case push UP key again if you want to restart the upload again or remove the “Hot key” to abort the operation.

9.2 HOW TO PROGRAM AN INSTRUMENT USING A HOT KEY (DOWNLOAD)

1. Turn OFF the instrument.

2. Insert a programmed “Hot Key” into the 5 PIN receptacle and then turn the Controller ON.

3. Automatically the parameter list of the “Hot Key” is downloaded into the Controller memory, the “doL” message is blinking followed a by flashing “End”.

4. After 10 seconds the instrument will restart working with the new parameters.

5. Remove the “Hot Key”.

NOTE the message “Err” is displayed for failed programming. In this case turn the unit off and then on if you want to restart the download again or remove the “Hot key” to abort the operation.

10. ALARM SIGNALS

The alarm message is displayed until the alarm condition is reset.

10.1 SILENCING BUZZER

Once the alarm signal is detected the buzzer can be silenced by pressing the UP key.

10.2 ALARM RECOVERY

Probe alarms: “P1” (probe1 faulty), “P2”; they automatically stop 10s after the probe restarts normal

operation. Check connections before replacing the probe. T° alarms “HA” and “LA” automatically stop as soon as the thermostat T° returns to normal values or when the defrost starts.

Door switch alarm “dA” stops as soon as the door is closed. External alarms “EAL”, “BAL” stops as soon as the external digital input is disa bled.

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11. TECHNICAL DATA

Housing: self extinguishing ABS Case: face 100x64 mm; depth 45.5mm Mounting: J-box or wall-mount in suitable enclosure Frontal protection: IP65 Connections: ¼” fast-on for power, 1/8” fast-on for probes and Digital Inputs Power supply: 120Vac Power absorption: 4VA max . Ambient Temperature: 32-131°F (0-55°C) Display: 3 digits, red LED, 14,2 mm high. Inputs: 1 NTC probe Digital inputs: 2 free voltages Relay outputs: Relay Contacts

Light: relay SPST 15A, 120Vac;

Alarm: relay SPST 8A, 120Vac Other output: alarm buzzer Data storing: on the non-volatile memory (EEPROM). Measuring and regulation range:

NTC probe: -40÷110°C (-58÷230°F) Resolution: 1 °F Accuracy : ±1 °F

12. CONNECTIONS

± 10%, optional 230Vac ± 10% MAX 15A

Power supply: 120Vac +/- 10% 15A MAX current

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LABEL

DESCRIPTION

VALUE

LEVEL

RANGE

Thermostat probe calibration

Pr2

[-21°F - 21°F]

Temperature measurement unit

Pr2

°C - °F

rES

Resolution (only for °C)

Pr2

dE - in

Display update

Pr2

0 - 255 (sec.)

OnF

Off function enabling

Pr2

n - Y

ALU

High temperature alarm setting (med temp / low temp)

50 / 30

Pr1

ALL-302° F

ALL

Low temperat ure alarm setting (med temp / low temp)

30 / -20

Pr1

°-58 - ALU

AFH

Temperature al ar m dif fer e nti al

Pr2

1°F - 45°F

ALd

Temperature al ar m del ay

Pr1

0 - 255 (min.)

dAo

Delay of temperature alarm at start-up

1.3

Pr2

0.0 - 24.0 Hrs.

EdA

Alarm delay at the end of defrost

Pr2

0 - 255 (min.)

dot

Delay of temperature alarm after clos ing the door

Pr2

0 - 255 (min.)

LHt

Light timer

Pr1

0 - 255 (min.)

FLH

Light Flashi ng Timer (time before light goes out that it will flash) (for incandescent & LED lights only)

Pr1

0 - 5 (Min)

doA

Open door alarm delay

Pr1

0 - 255 (min.)

oA1

First relay configuration

ALr

Pr2

ALr - LHt - OnF

oA2

Second relay configuration

LHt

Pr2

ALr - LHt - OnF

AOP

Alarm relay polarity

Pr2

OP - CL

i1P

Digital input 1 polarity

CLoP

Pr2

OP - CL

i1L

Door switch to turn light ON

Pr2

n - Y

i1F

Digital inp ut 1 operating mode

dor

Pr2

EAL - dor - dEr - LHt

i2P

Digital input 2 polarity

Pr2

OP - CL

i2F

Digital inp ut 2 operating mode

PAn

Pr2

EAL - Pan - dFr - LHt

did

Time interval /delay for digital input alarm

Pr2

0 - 255 (min.)

tbA

Alarm relay disabling

Pr2

n - Y

PbC

Kind of probe

ntc

Pr2

PtC - ntC

dP1

Real temperature Probe 1

Pr2

(probe value)

rEL

FW release

Pr2

read only

Ptb

Parameter m ap

Pr2

read only

13. PARAMETER MAP

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14. PARAMETER LIST

Ot Thermostat probe calibration: (-12.0

÷12.0°C/ -21÷21°F) allows to adjust possible offset of the

thermostat probe.

CF T measurement unit: °C = Celsius; °F = Fahrenheit. When the measurement unit is changed the

Set Point and the values of some parameters have to be modified.

rES Resolution (for °C): (in = 1°C; dE = 0.1 °C) allows decimal point display. Ut Display update: The time delay of the T readout (0÷255s) onF Off function enabling: n = off function disabled; y = off function enabled; ALU High T° alarm setting: (ALL

÷ 150°C or 302°F);

when this T° is reached and after the ALd delay time the HA alarm is enabled.

ALL Low T° alarm setting: (- 50°C or -58°F

when this T° is reached and after the ALd delay time, the LA alarm is enabled,.

AFH T° alarm differential: (0,1÷25,5°C; 1÷45°F) differential for T° alarm Set Point and fan regulation

Set Point, always a positive value

ALd T° alarm delay: (0÷255 min) time interval between the detection of an alarm condition and the

corresponding alarm signaling.

dAO Delay of T° alarm at start-up: (0min÷23h 50min) time interval between the detection of the T°

alarm condition after the instrument power on and the alarm signaling.

EdA Alarm delay at the end of defrost: (0

÷255 min) Time interval between the detection of the T°

alarm condition at the end of defrost and the alarm signaling.

dot Delay of T° alarm after closing the door: (0

condition after closing the door.

LHt Light timer: (0-255 min) The time the light will stay on after pressing the light switch on the

keyboard.

FLH Light Flashing: (0-5 min) The light will “dou ble flash” every 20 seconds dur ing the FLH time period

before turning off after the LHt time. (For incandescent and LED lights only.)

doA Open door alarm delay:(0÷255 min) delay between the detection of the open door condition and

its alarm signaling: the flashing message “dA” is displayed.

oA1 First relay configuration: (14-15): ALr = alarm; LHt = light; onF = on/off relay oA2 Second relay configuration: (14-16): ALr = alarm; LHt = light; onF = on/off relay AOP Alarm relay polarity: cL = closing contacts ; oP = ope n ing contac ts . i1P Digital input 1 polarity (1-2): CL : the digital input is activated by closing the contact;

OP: the digital input is activated by opening the contact i1L Door switch to turn light ON(1-2): (y / no) To turn the light ON automatically when the door is

open. The light will turn off based on LHt . Keyboard switch must be turned ON first.

i1F Digital input 1 operating mode(1-2): EAL = external alarm; dor = door switch; dFr = A defrost is

running; LHt = keep light ON (signal from occupancy sensor) override LHt.;

i2P Digital input 2 polarity (1-3): CL : the digital input is activated by closing the contact; OP: the digital input is activated by opening the contact

i2F Digital input 2 operating mode: configure the digital input function: EAL = External alarm; PAn =Panic alarm; dFr = A defrost is running; (need external CT’s) LHt = Keep light ON (signal from occupancy sensor) overrides LHt. did Time interval/delay for digital input alarm:(0

“did” parameter defines the time delay between the detection and the successive signaling of the

alarm.

tbA Alarm relay & Buzzer disabling: (y ; no) Pbc Type of probe (PTC, NTC) dP1 Probe 1 T rEL Software release for internal use. Ptb Parameter table code: read only.

÷ ALU)

÷255 min) Time delay to signal the T° alarm

÷255 min.) If I2F=EAL or PAn (external alarms),

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QUICK SHEET

XWA11V Walk-in Alarm / Door / Alarm / Light Unit Operation Manual

In Normal Operation the Indicator will display the temperature. 36° F CHECK ALARM SETPOINTS (Cooler HA = 50°F, LA = 30°F / Freezer HA = 30°F, LA = -20°F)

To SEE the HIGH Alarm Set Point Press and release the Key, It will display the High Set Point for 5 seconds. The Temp alarm will go ON if the temp exceeds the Set Point after

15 minutes. The display will read HA alternating with the Temp.

To SEE the LOW Alarm Set Point Press and release the Key it will display the Low Set Point for 5 seconds. The Temp alarm will go ON if the temp exceeds the Set Point after

15 minutes. LA, alternati ng w it h the Temp.

CHANGE ALARM SETPOINTS

1. To Change the HIGH Alarm Set Point Press BOTH the for 7 seconds

and the LED above the will blink.

2. Release and scroll UP to adjust the Set Point up, or Scroll DOWN to adjust

the Set point down.

3. Press

to confirm the change.

4. For Low Set Point repeat the procedure with the LIGHT OPERATION

Press the light switch

to turn ON the inside light; it will automatically go OFF after 15

minutes.

DOOR SWITCH

If the door switch is used opening the door will automatically turn the light ON, and will automatically go OFF after 15 minutes.

If the Door is left open longer than 15 minutes the DOOR Alarm will go off, dA alternating with the temperature reading.

ALARM SIGNAL S

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Walk-In Alarm System

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1901000005

1901000007

WARNINGS AND CAUTIONS:

Occupancy Sensor for Light Operation

Installation:

1) Determine best location for sensor. Ideal

location is above door to monitor traffic entering the work area. Limit false tripping by keeping away from fans and vent ports.

2) Set the DIP switches to match operating

requirements. (Setting options are on next page) Record setting and date on last sheet on this instruction sheet and keep for reference.

3) Thread the ½ NPT arm into junction box or into

light fixture housing.

4) Connect the line voltage, neutral and load wires

to the sensor leads as shown in wiring Diagram.

5) With lens off, temporarily cover sensor with

towel or aluminum foil. Apply power and the sensor will turn ON for up to 2 minutes and automatically turn OFF. Remove towel or aluminum foil and wave hand in front of sensor. Determine if the ON time is adequate for application and/or make any final adjustments to DIP switches.

6) Attach the Lens as shown in the sensor assembly drawing.

1901000007: 24’ dia at 20’ - 40’ Weight: 0.28 lbs [130 grams]

Low Bay

Sensor

High Bay

Sensor

Temperature: Min: -40 °F [-40 °C] Max: 131 °F [55 °C]

Electrical Connection: ½” conduit connection 13 ½” 18 AWG wire Wire temperature 105 deg C max *

• All installation must comply with local and National Electrical Codes.

• The manufacturer assumes no responsibility for improper installation or application.

cULus Wet location – Indoor Use Only

• Turn off electricity at the breaker or fuse box before installation.

PIR Sensitivity (Switches 1 – 2)

Specifications: Voltage: 120 / 277 VAC @ 60 Hz Load: 120 VAC / 0- 800W ballast

277 VAC / 0-1200W ballast

Time Delay: 15 seconds – 30 minutes Coverage:

1901000005: 24’ dia at up to 20’

*Some incandescent fixtures may re q u ire higher temperature wires. Remote mounting or adding fiberglass sleeves over the wires may be required.

Approval Standards: IP65

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Settings

High

Normal

Medium

Low

Settings

3 4 5 6 7

15 Seconds

X X X X X

5 Minutes

X X X X

10 Minutes

X X X

15 Minutes

X X

20 Minutes

30 Minutes

Settings

8 9 10

OFF

n/a

Date:

1 2 3 4 5 6 7 8 9

n/a

Note: The sensor is pre-set at

The factory setting (Normal) is suitable for most applications, but it may be necessary to adjust the PIR sensitivity if there is any environmental interference causing false triggers or if sensitivity needs to be increased for your particular application. Use DIP switches 1 & 2 to adjust sensitivity.

Sensitivity

the factory to meet the requirements of most applications. Sensor factory pre-sets are bold. “X” indicates switch in the ON position.

ON Time Timer (Switches 3 – 7)

Use DIP switches 3 to 7 to adjust the ON time duration. Note: will restart timer every time motion it detected.

Timer Settings

Override (Switch 8)

The override disables the occupancy control feature of the sensor module. When occupancy control is disabled, the load remains ON as long as the sensor is powered.

Override

Please mark your current settings for reference.

Remote Buzzer Box Installation

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Installation:

1. Mount the remote buzzer box in the location desired.

2. Drill the appropriate size hole for the conduit fitting into the Wall Mount Box P/N 142456.

3. Conduit, conduit fittings, and wire are by others. Installation must be by a qualified electrician per the applicable national and local codes.

4. Connect a black wire to terminal #4 and a white wire to terminal #13 of the Phone Relay in the Wall

5. Mount Box.

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