Suraielec 7-Day Digital Box Timer Switch

Safety Section

Specifications

Input

120-240/277VAC, 60Hz. Detects voltage automatically (NO DIP SWITCH SETTING REQUIRED).

Contact Ratings

• 40A Resistive, 120 to 277 VAC;
• 30A General Purpose, 120 to 277 VAC;
• 20A Resistive, 30VDC;
• 1HP, 120 VAC;
• 2HP, 240VAC;
• 20A Ballasted load, 120 to 277 VAC;
• 15A Tungsten, 120 VAC;
• 5A Tungsten, 250VAC;
• 800VA, Pilot Duty, 120VAC;
• 720VA, Pilot Duty, 240 VAC;
• TV-5, 120VAC.

Terminal Range

• #14-#8 AWG

Operating Temperature

• -40°F to 149°F (-40°C to 65°C)

Minimum ON or OFF time

• 1 minute

Maximum ON or OFF time

• 23 hours, 59 minutes

Product Illustration

A detailed illustration of the Suraielec 7-Day Digital Box Timer Switch. The main body is a rectangular box with a hinged door. Inside, there's a digital timer display. Key components are labeled: a Timer Indicator, a Clip, the Digital Timer display, a Load Indicator, a Power Indicator, a Plastic Insulator, Knockouts on the sides for conduit connections, and a Grounded Terminal at the bottom. The image shows the plastic insulator being opened to reveal the internal components and terminals.

Light Chart

Installation

Mounting the Digital Box Timer

1. Choose the knockouts: Five 1/2" to 3/4" combination knockouts are available.
   • For 1/2" Knockouts: If using the 1/2" knockout, carefully cut off the inner ring of the rubber plug with a knife.
   • For 3/4" Knockouts: If using the 3/4" knockout, remove the entire rubber plug.

   Figure 2 illustrates a 1/2" knockout, showing the inner ring being cut. Figure 3 illustrates a 3/4" knockout, showing the entire plug removed.

2. Mounting the Digital Box Timer:
   1. Hold the box in place and use the three mounting holes to mark positions on the mounting surface.
   2. Mount the box with the screws.

   Figure 4 shows the mounting holes on the back of the timer box, indicating where to mark for installation.

   NOTE

   • Install upright, in a vertical orientation.
   • Always close the rainproof door after use.

Connecting the Wires

1. Lift the plastic insulator off the retaining post and away to expose the terminal strip.
2. Wire according to the typical application wiring diagrams.

Figure 5: Terminal Designations. This diagram shows the internal terminal strip of the digital box timer with terminals labeled S1, S2, T (Timer), L (Line), N (Neutral), COM1 (Common Terminal 1), NO1 (Normally Open 1), COM2 (Common Terminal 2), and NO2 (Normally Open 2). It clarifies that L=Line, N=Neutral, NO=Normally Open, COM=Common Terminal, J=Jumper Wire, and T=Timer.

Figure 6: 120V Application - Controlling One 120VAC Load. This wiring diagram shows the connections for a single 120VAC load. Line (L) and Neutral (N) are connected to the timer's L and N terminals respectively. A jumper wire (J1) connects COM1 to the Line (L) terminal. The 120VAC load is connected between NO1 and Neutral (N).

Figure 7: 120VAC Application - Controlling Two 120VAC Loads. This diagram illustrates wiring for two 120VAC loads. Line (L) and Neutral (N) are connected to the timer's L and N terminals. A jumper wire (J1) connects COM1 to the Line (L) terminal. The first 120VAC load is connected between NO1 and Neutral (N). The second 120VAC load is connected between NO2 and Neutral (N).

Figure 8: 240VAC Application - Controlling One 240VAC Load. This diagram shows connections for a single 240VAC load. Line 1 (L1) and Line 2 (L2) are connected to the timer's L and N terminals respectively (N acts as the second line for 240V). A jumper wire (J1) connects COM1 to L, and another jumper wire (J2) connects COM2 to N. The 240VAC load is connected between NO1 and NO2.

Figure 9: 277VAC Application - Controlling Two 277VAC Loads. This diagram shows connections for two 277VAC loads. Line (L) and Neutral (N) are connected to the timer's L and N terminals. A jumper wire (J1) connects COM1 to L. The first 277VAC load is connected between NO1 and N. The second 277VAC load is connected between NO2 and N.

Figure 10: Hot Water Heater Typical Wiring Diagram. This diagram shows the timer integrated into a hot water heater circuit. The timer is connected to a 120VAC supply. The timer's L and N terminals are connected to the 120VAC supply. A jumper wire (J1) connects COM1 to L. The hot water heater's 120VAC load is connected between NO1 and N. For a 240VAC hot water heater, L1 and L2 from the circuit breaker box connect to the timer's L and N terminals (acting as L1 and L2). Jumper wires (J1, J2) connect COM1 to L and COM2 to N. The 240VAC load is connected between NO1 and NO2.

Programming

Before initial use, plug the timer in for at least 30 minutes to charge the internal battery. After the screen displays, the unit is ready for programming.

1. Reset

Before programming, all settings should be reset. The reset hole, identified by "R", is located just below the "R/RECALL" button. Use a paper clip or ballpoint pen to activate it.

Figure 11 shows the timer display before and after a reset. Initially, it might show "MO TU WE TH FR SA SU" and "88:88". After a few seconds post-reset, it will display "MO" and "00:00".

2. Set the Current Time

1. Keep the "CLOCK" button pressed entirely during the setting operation.
2. Press the "HOUR" button to set hours.
3. Press the "MIN" button to set minutes.
4. Press the "WEEK" button to select the correct day of the week.
5. Release the "CLOCK" button. The time will be set.

3. ON/OFF Program Setting

1. Press the "PROG" button once. Figure 12 will appear. There are a total of 20 ON/OFF settings.

Figure 12 shows the display for setting an ON program, indicating "MO TU WE TH FR SA SU" and a time. Figure 13 shows the display for setting an OFF program, indicating "MO TU WE TH FR SA SU" and a time.

2. Press the "HOUR" or "MIN" buttons to set ON time.
3. Press the "WEEK" button to select the day(s):
   • MO, TU, WE, TH, FR, SA, SU
   • MO
   • WE
   • TU
   • SA
   • TH, FR
   • SA, SU
   • SU, MO, TU, WE, TH, FR
   • MO, WE, FR
   • MO, TU, WE, TH, FR, SA
   • MO, TU, WE
   • TU, TH, SA
   • TH, FR, SA
4. Press the "PROG" button to save and proceed to the "1 OFF" setting.
5. Repeat steps a-e to set ON/OFF times. Pressing the "PROG" button again will advance to the other 19 ON/OFF settings.

4. Reset Button (during programming)

1. Press the "PROG" button to select the ON/OFF setting that needs to be changed.
2. Press the "R/RECALL" button to reset the current ON/OFF setting without having to scroll through all the hours.

Figure 14 shows the display after pressing R/RECALL during programming, indicating "SA SU" and "00:00" for the selected ON/OFF setting.

5. Switching Mode Indication

The actual mode is shown on the display as "ON", "AUTO ON", "OFF", or "AUTO OFF" together with the time of day. Press the "ON/AUTO/OFF" button to adjust to the desired setting mode.

6. Manual Override Setting

As an independent programming, it is possible at any given time to advance to the next switching command by constantly pressing the "ON/AUTO/OFF" button, as shown below:

➤ AUTO OFF ➔ ON ➔ AUTO ON ➔ OFF

• ON = Always ON;
• OFF = Always OFF;
• AUTO ON = Timer is ON currently and ON/OFF program is activated.
• AUTO OFF = Timer is OFF currently and ON/OFF program is activated.

7. Daylight Saving Time (DST)

Press and hold the "CLOCK" button for 3 seconds to advance the current time by 1 hour; a "+1h" icon will appear on the display. Press and hold the "CLOCK" button for 3 seconds again to decrease 1 hour, and the "+1h" icon will disappear.

Figure 15 shows the display before and after DST adjustment. Initially, it might show "TH" and "8:00". After pressing and holding CLOCK, it will show "TH" and "9:00" with a "+1h" indicator.

8. Power Back-up Feature

In the event of a power failure, the timer will retain its settings for an estimated 3 months if the power backup is fully charged.