Dewenwils Outdoor Mechanical Timer Box
SKU: HOMT01A
[Instruction Manual]
Product Overview
Thank you for your purchase. Please contact Dewenwils if you have any questions. We will get back to you within 24 hours. Email: support@dewenwils.com. Please attach your Order ID so that we can serve you better.
Important Safety Information
Warning: This timer should be installed by a licensed electrician. Turn power off at the main panel before servicing this switch or the equipment it controls.
IMPORTANT: For outdoor use. Rain-tight or wet location conduit, hubs, tubing, and cable fittings that comply with requirements of UL 514B must be used for installation.
READ ALL INSTRUCTIONS before using the Timer Box.
Product Illustration
The timer box features a timer dial, a manual switch, a load indicator, and a power indicator. It also has knockouts for conduit connections.
Specifications
Input: 120-277VAC 60Hz
Output:
- 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
- Raintight
Installation Instructions
- Read Important Safety Information before beginning installation.
- Open outer cover by pressing the clip.
- Remove the interior protective cover by removing the screw holding the cover in place (See Figure 1).
- Select the knockouts to be used. If you use the 1/2" knockout, carefully cut off the inner ring of the rubber plug with a knife (See Figure 2). If you use the 3/4" knockout, please remove the entire rubber plug (See Figure 3).
- Place the Timer Box in the desired mounting location and mark it. Install a screw at the mark and drive partially in place. Attach Timer Box by placing the keyhole over the screw; then tighten the screw firmly.
- Press the upper clip to remove the motherboard (See Figure 4).
- Use copper wire AWG 8-18 suitable for 90°C(194°F). WIRING TO COMPLY WITH ALL LOCAL AND NATIONAL ELECTRICAL CODES. Bonding between conduit connection is not automatic and must be provided as part of the installation. Minimum 10.6 lb. in. torque required at the terminals to ensure proper connections. Strip the supply and load wires to 1/2".
- Grounding: Terminate all ground wires to the grounding lug at the bottom of the enclosure.
- Assemble the motherboard and interior protective cover.
- Close outer cover.
Timer Box Terminal Designations
The diagram shows the terminal layout for the Timer Box:
- L = Line
- N = Neutral
- NO = Normally Open
- COM = Common Terminal
- J = Jumper Wire
- T = Timer
Terminals include L1, L, N, T, COM1, NO1, COM2, NO2. COM1 and NO1 form one set of contacts, and COM2 and NO2 form another set.
Timer Box Typical Application Wiring Diagrams
Note: The Timer Box is capable of being configured for 120 VAC, 240VAC, or 277VAC.
*J1 & J2 are 16 AWG jumper wire for the timer power supply.
120VAC Application Controlling One 120VAC Load
A wiring diagram illustrates connecting the Timer Box to control a single 120VAC load. The diagram shows connections for Line (L), Neutral (N), Timer (T), and the load, with jumper J1 connecting L to T.
120VAC Application Controlling Two 120VAC Loads
A wiring diagram illustrates connecting the Timer Box to control two separate 120VAC loads. The diagram shows connections for Line (L), Neutral (N), Timer (T), and two loads, with jumper J1 connecting L to T.
240VAC Application Controlling One 240VAC Load
A wiring diagram illustrates connecting the Timer Box to control a single 240VAC load using dual-phase power (L1 and L2). The diagram shows connections for Line 1 (L1), Line 2 (L2), Neutral (N), Timer (T), and the load, with jumpers J1 and J2 used for power supply.
277VAC Application Controlling Two 277VAC Loads
A wiring diagram illustrates connecting the Timer Box to control two separate 277VAC loads. The diagram shows connections for Line (L), Neutral (N), Timer (T), and two loads, with jumper J1 connecting L to T.
Hot Water Heater Typical Wiring Diagram
A diagram shows a typical wiring setup for a hot water heater using the Timer Box, connecting to a 120VAC hot water tank and a 240VAC (Dual-phase) circuit breaker box.
Operating Instructions
- Set the current time: Turn the dial clockwise until the arrow indicates the current time.
- Set ON/OFF periods: Push the pins in the inner ring for the periods of time you want the timer to be ON. Pins in the outer ring represent ON, and the inner ring represents OFF. Note: Pins indicated by the arrow cannot be pushed out; rotate the dial to make it work.
- Manual Override: Push the manual override switch to the "O" position for OFF (power supply always OFF) or "I" position for ON (power supply always ON). Be sure to set the switch back to the timer function position for proper timer operation.
- Ensure the electrical device is in the ON state for the timer box to control it properly.
- If there is a blackout, reset the present time as indicated above.
One Year Limited Warranty
DEWENWILS warrants this product to be free from defects in material and workmanship for a period of one year from the date of purchase. Warranty is void if damage is caused by misuse or improper installation. Email: support@dewenwils.com. Our dedicated customer service team will get back to you within 24 hours.
Related Documents
![]() |
Dewenwils HOMT01B Outdoor Mechanical Timer Box Instruction Manual Comprehensive instruction manual for the Dewenwils HOMT01B Outdoor Mechanical Timer Box, detailing specifications, installation steps, wiring diagrams, operating instructions, and warranty information for reliable outdoor electrical timing applications. |
![]() |
Dewenwils Outdoor Digital Timer Box HODT01B Instruction Manual Comprehensive instruction manual for the Dewenwils Outdoor Digital Timer Box (Model HODT01B), detailing installation, wiring diagrams, operating procedures, and warranty information for efficient electrical control. |
![]() |
Dewenwils Indoor Mechanical Pin Timer Instruction Manual Instruction manual for the Dewenwils Indoor Mechanical Pin Timer, detailing operation, specifications, and warranty information. |
![]() |
Dewenwils Outdoor Mechanical Pin Timer HOMT11A Instruction Manual Instruction manual for the Dewenwils Outdoor Mechanical Pin Timer, model HOMT11A. Includes safety warnings, product layout, installation, operation instructions, specifications, and warranty information. |
![]() |
Dewenwils Outdoor Wi-Fi Smart Box Installation and User Manual Comprehensive guide for the Dewenwils Outdoor Wi-Fi Smart Box (SKU: HOWT01B), covering installation, specifications, wiring diagrams, app setup, timer functions, and troubleshooting. |
![]() |
Dewenwils Indoor Mechanical Pin Timer Switch Instruction Manual Instruction manual for the Dewenwils Indoor Mechanical Pin Timer Switch, detailing its features, operation, specifications, and warranty. |
![]() |
Dewenwils Outdoor Digital Stake Timer Instruction Manual Comprehensive instruction manual for the Dewenwils Outdoor Digital Stake Timer, covering installation, operation, programming, and safety features. Learn how to set current time, create ON/OFF programs, utilize modes like AUTO, PHOTOCELL, and RDM, and understand the 2H/8H countdown functions. |
![]() |
Dewenwils Outdoor Digital Yard Stake Timer HOYS22A Instruction Manual Instruction manual for the Dewenwils HOYS22A Outdoor Digital Yard Stake Timer. Includes installation, product layout, operating instructions, warnings, and specifications. |