NSi Industries EJWT - Manual

MODEL#:
EJWT
The control will cycle loads on/off based on the setting of the control knobs as long as input power is supplied. The control will start with the on time cycle after initial power is applied
to the control. The unit is simple to set consisting of only two dials: one CYCLE TIME dial to set time durations and one % ON dial to set the percentage of ON time for the selected
duration.
Total cycle duration can be set from 15 seconds minimum to 24 hours maximum, The % ON setting for each cycle duration is independently adjustable from 0% (continuous OFF) to
100% (continuous ON) in 32 increments
POwEr
rEquirEMEnts:
Inputs: 120 and 240 VAC (+10% -15% at 60 Hz)
Outputs: SPDT relay with 20 Amp N.O. and 10 Amp N.C. general purpose at 120,240 VAC; N.O. 1 HP at 120 VAC, 2HP at 240 VAC
EnvirOnMEntaL:
Operating Temperature Range: 32°F to 122°F (0°C to 50°C).
Operating Humidity Range: Relative humidity up to 100%
Water Resistance: The control will be capable of direct low-pressure water wash down according to NEMA 4X specification.
COntaCt
ratinG:
EnCLOsurE: NEMA type 4X (indoor use only) enclosure standard (EJWT). Watertight cover with gasket is flame retardant UV stabilized and non-metallic. In grey.
MOuntinG: Control is compatible for mounting to Tork’s NEMA 4X nonmetallic enclosure
DiaLs: Sealed from external access
MaintEnanCE:
Cleaning: Use only mild detergent and water
to clean the enclosure
INSTALLATION & WIRING INSTRUCTIONS
Note:Wiring connections are made to a six-position terminal block. All
terminals accept AWG #18 to AWG #12 wire.
1. Turn off all power to the timer circuit at the distribution panel before
beginning the installation.
2. The EJWT box contains knockouts on two sides. Determine the most
convenient way to mount the box to the conduit and remove the
appropriate knockout. To secure the box to a fixed location, use at
least two of the four box mounting knockouts located on the back of
the box.
3. Wire timer for either 120 VAC or 240 VAC as shown by the wiring
diagram. Wire the load to the timer as shown in the wiring diagram,
noting the contact load type and ratings shown.
4. Securely attach the timer to Tork’s NEMA 4X (for indoor use only)
non-metallic enclosure with the included screws.
®
PERCENTAGE TIMER
VOLTAGE LOAD TYPE N.O. CONTACTS N.C. CONTACTS
120-240 VAC Resistive 20 A 10 A
120-240 VAC General Purpose 20 A 10 A
120 VAC Motor 1 HP ¼ HP
208-240 VAC Motor 2 HP ½ HP
120-240 VAC Pilot Duty 470 VA 275 VA
! CAUTION !
RISK OF ELECTRIC ShOCK
Disconnect power at main panel prior to installing
or servicing this lighting control or the equipment connected to it.
T
LOAD
NC NO COM 240V/L1 120V NEUT/L2
120V
FOR 240V
L2 L1
120V
L N
APPLY ONLY ONE VOLTAGE
SPDT
L1 L2
FOR 240V
N L