Nailor reserves the right to change any information concerning product or specification without notice or obligation.
IOM-UNIVAVETINST
Date:
8
-2021
Supersedes: NEW
nailor.com
UNI2-VAV Electronic Thermostat
Страница 1: ...Nailor reserves the right to change any information concerning product or specification without notice or obligation IOM UNIVAVETINST Date 8 2021 Supersedes NEW nailor com UNI2 VAV Electronic Thermostat ...
Страница 2: ...tat from the subbase 6 Moun ng the thermostat subbase 6 SWITCH FUNCTIONS 7 KEY FUNCTIONS 7 SETUP 8 10 Start up 8 Entering the setup menu 8 Se ng the minimum damper posi on 8 Se ng the maximum damper posi on 8 Se ng a unit number 9 Se ng a zone number 9 Se ng the hea ng limit 9 Se ng the cooling limit 9 Se ng the actuator speed 10 Se ng the modbus address 10 Temperature calibra on offset 10 Saving s...
Страница 3: ... calls for cooling and there is cold air in the duct the damper will be allowed to drive open otherwise the damper will maintain it minimum posi on The same applies for a hea ng call The temperature in the duct must match the call or the thermostat will keep the damper at its minimum posi on The UNI2 VAV can be used in stand alone applica ons as well as with the Z20 twenty zone logic panel that co...
Страница 4: ...over thermostat The thermostat wires to a factory mounted actuator board on a zone damper of VAV diffuser that uses a 3 wire floa ng point actuator A duct sensor is wired to the actuator board The thermostat uses the sensor to determine whether the temperature in the duct is compa ble with the thermostat call For example if the thermostat calls for cooling and the duct temperature is below 72 F the ...
Страница 5: ... COOLING ACTUATOR BOARD DAMPER OR DIFFUSER ACTUATOR OPEN CLOSED COM DS DS OPEN CLOSED COM 90 SECOND TIMING 90 STROKE 44 Ib in 2VA DUCT SENSOR 10K OHMS 77 OPTIONAL AUX HEAT CONTACTS REMOVE FACTORY JUMPER IF USED WIRE TO OPTIONAL SLAVE DAMPER 24 VAC POWER Typical Zone Control System DAMPER OPEN 24 VAC DAMPER CLOSED 24 VAC CALL FOR HEAT 24 VAC 24 VAC POWER HOT 24 VAC POWER COM DUCT SENSOR DUCT SENSOR...
Страница 6: ...or pins are fully seated into the terminal blocks Moun ng the thermostat subbase The thermostat should be installed in a loca on that represents the ambient room temperature Do not install the thermostat in an area where dra s are present near the floor behind doors or on an external wall Avoid placing the thermostat in areas where the air movement is limited affected by direct sunlight or other are...
Страница 7: ...t and Cool ON posi on hides Heat and Cool A SWITCH 7 When switch 7 if OFF both the space temperature and set temperature are displayed When switch 7 is ON only the set temperature is displayed A SWITCH 8 has no func on B SWITCH 1 Switch1should remainOFFforModbus Itisonlyusedasanend of the line resistor on a large network where communica ons issues might exist Consult factory for addi onal informa ...
Страница 8: ...ents Figure 3 Figure 3 Se ng the maximum damper posi on PresstheSETUPkeyagainandtheLCDwilldisplaythemaximum damper posi on for hea ng and cooling The factory default is 100 which means the damper can drive fully open Press the and keys to change the maximum damper posi on Posi on may be adjusted in 10 increments Figure 4 Figure 4 Helpful Hint The maximum damper posi on se ng can help with air bala...
Страница 9: ...UP CONT Se ng a unit number The SETUP key again and the LCD will display the word UNIT The factory default is 00 This number can be used to assign the thermostat to a par cular HVAC unit Use the or key to assign a UNIT number from 00 to 99 Figure 5 Figure 5 Se ng a zone number Press the SETUP key again and the LCD will display the word ZONE The factory default is 00 This number can be used to iden...
Страница 10: ... press and hold the SETUP key un l the setup menu is displayed and then toggle through the se ngs Press the ENTER key to exit the setup menu Remove the thermostat from the subbase and set the Switch 1 in the ON posi on to lock the thermostat which will prevent setup changes from being made When the thermostat is locked a padlock icon will be displayed on the LCD Figure 12 Figure 12 SETUP CONT Se n...
Страница 11: ...ncrements 0 fully closed and 100 fully open THERMOSTAT OPERATION The thermostat is designed to provide accurate but simple temperature control for the user When the thermostat is not calling only the space temperature is displayed on the LCD along with the padlock icon that confirms the thermostat setup func ons cannot be changed The user can use the and keys to change the thermostat setpoint withi...
Страница 12: ... the LCD Figure 17 Figure 17 ADVANCED FUNCTIONS CONT Override to open Press the and keys un l the word OPEN appears on the LCD and then press the ENTER key The damper will drive open and remain in the open posi on un l the override is canceled Figure 18 Figure 18 Override to close Press the and keys un l the word CLOSE appears on the LCD and then press the ENTER key The damper will drive closed an...
