SPACE SAVER SSETU-18K Series Point Of Use Electric Tankless User Manual

SPACE SAVER SSETU-18K Series Point Of Use Electric Tankless

Product Information

Product Specifications

Model Number| Voltage (V)| Number of Elements| Total Input Wattage (kW)| Wattage per Element| Total Current Draw (Amps)| Recommended Canada Circuit Breaker Size (Amps)| Conductor Size (AWG)| Activation GPM
---|---|---|---|---|---|---|---|---
SSETU-18K| 120| 2| 1.75| 0.88| 14.58| 20| 14| 0.17

Dimensions

• Width: 11.25 in (28 cm)
• Height: 15.5 in (38 cm)
• Depth: 8 in (20 cm)
• Weight: 6.0 lb (2.7 kg) – 8.0 lb (3.6 kg)

Installation

Minimum Clearances:

• Front Clearance: 15+ in (38.1 cm +)
• Side View Clearance: 12 in (30.5 cm)
• Drain Pan Clearance: 12+ in (30.5 cm +)

Orientation & Clearance

• Ensure proper orientation with hot and cold water connections.
• For Technical Information call 1-888-599-2837. A. O. Smith Enterprises Ltd. reserves the right to make product changes or improvements without prior notice.

Frequently Asked Questions

How do I determine the appropriate model for my needs?

You should consider factors such as voltage requirements, total current draw, and desired activation GPM to select the model that best suits your usage.

What is the warranty coverage for this product?

The warranty coverage details can be found in the product documentation provided with your purchase.

Can this tankless unit be used for both commercial and residential purposes?

Yes, this tankless unit is designed for both commercial and residential applications.

EASY INSTALLATION

• Compact size perfect for point-of-use applications close to fixtures
• Mounts easily to the wall
• No venting required
• ½” NPT water connection
• No T&P valve required (check local codes)

WIDE ARRAY OF MODELS AND MODES OF OPERATION

• 1.75kW – 3.5kW, 120V
• 3.5kW – 11kW, 240V (208V)
• Single Phase, 50/60 Hz
• Two mode options, easy switching
• Lavatory mode, default 105°F; temp range 80°F – 149°F
• Emergency eye wash mode, 85°F

ONBOARD SELF-DIAGNOSTICS & TROUBLESHOOTING

• Onboard self-diagnostics to monitor performance and protect the unit
• Bright LED display for status updates and making system selections and adjustments
• Error codes for troubleshooting and faster resolution

HIGHLY EFFICIENT & RELIABLE THERMOSTATIC DESIGN

• On-demand water heater capable of supplying endless hot water when appropriately sized
• Ultra-low activation of 0.17 GPM min.
• Energy efficiency 0.91 UEF or higher
• Dry-fire protection to prevent premature element failures
• Secondary temperature regulation to limit hot water output appropriate for use with hand or eye washing applications
• Scale detection (Patent Pending) and easy maintenance for the extended service life of the heater

CONSTRUCTION

• Housing – Bayblend® FR3010 plastic, dark gray
• Chamber Material – Entec Nylon, glass-filled
• Sheathed copper elements for longer life

WARRANTY

• 6-Year limited warranty on chambers
• 1-Year limited warranty on all parts
• For complete information, consult the written warranty

SPECIFICATIONS

PRODUCT SPECIFICATIONS

Model Number

|

Voltage (V)

|

Number of Elements

|

Total Input Wattage (kW)

|

Wattage per Element

|

Total Current Draw (Amps)

| Recommended Canada Circuit Breaker Size (Amps)|

Conductor Size (AWG)

|

Activation GPM

SSETU-18K| 120| 2| 1.75| 0.88| 14.58| 20| 14| 0.17
SSETU-24K| 120| 2| 2.40| 1.20| 20.00| 25| 12| 0.17
SSETU-30K| 120| 2| 3.00| 1.50| 25.00| 35| 10| 0.17
SSETU-35K| 120| 2| 3.50| 1.75| 29.17| 40| 10| 0.17
SSETU-35E| 240+| 2| 3.50| 1.75| 14.58| 20| 14| 0.17
SSETU-45E| 240+| 2| 4.50| 2.25| 18.75| 25| 12| 0.17
SSETU-55E| 240+| 2| 5.50| 2.75| 22.92| 30| 10| 0.17
SSETU-70E| 240+| 4| 7.00| 1.75| 29.17| 40| 10| 0.17
SSETU-90E| 240+| 4| 9.00| 2.25| 37.50| 50| 8| 0.17
SSETU-110E| 240+| 4| 11.00| 2.75| 45.83| 60| 8| 0.17

• Copper conductors only. All wiring/conductors must be rated for 90°C or greater.
• This model may be connected to a 208 VAC supply with reduced power output. Connection to 208 VAC may require a different breaker and/or wire size than shown in the table.

NOTICE:
Incoming line voltage variations may result in nuisance breaker trips. Contact Technical Support if there are multiple breaker trips when the recommended breaker size is in use.

Volts

|

kW

|

25°F

|

30°F

|

35°F

|

40°F

|

45°F

| GPM AT TEMPERATURE RISE

50°F         55°F         60°F

|

65°F

|

70°F

|

75°F

|

80°F

|

85°F

---|---|---|---|---|---|---|---|---|---|---|---|---

120V

| 1.75kW| 0.47| 0.39| 0.33| 0.29| 0.26| 0.23| 0.21| 0.20| 0.18| 0.17| –| –| –
2.4kW| 0.64| 0.54| 0.46| 0.40| 0.36| 0.32| 0.29| 0.27| 0.25| 0.23| 0.21| 0.20| 0.19
3kW| 0.80| 0.67| 0.57| 0.50| 0.45| 0.40| 0.36| 0.33| 0.31| 0.29| 0.27| 0.25| 0.24
3.5kW| 0.94| 0.78| 0.67| 0.59| 0.52| 0.47| 0.43| 0.39| 0.36| 0.33| 0.31| 0.29| 0.28
| 3.5kW| 0.94| 0.78| 0.67| 0.59| 0.52| 0.47| 0.43| 0.39| 0.36| 0.33| 0.31| 0.29| 0.28
| 4.5kW| 1.20| 1.00| 0.86| 0.75| 0.67| 0.60| 0.55| 0.50| 0.46| 0.43| 0.40| 0.38| 0.35

240V (208V)

| 5.5kW| 1.47| 1.23| 1.05| 0.92| 0.82| 0.74| 0.67| 0.61| 0.57| 0.53| 0.49| 0.46| 0.43
7kW| 1.87| 1.56| 1.34| 1.17| 1.04| 0.94| 0.85| 0.78| 0.72| 0.67| 0.62| 0.59| 0.55
| 9kW| 2.41| 2.01| 1.72| 1.50| 1.34| 1.20| 1.09| 1.00| 0.93| 0.86| 0.80| 0.75| 0.71
| 11kW| 2.94| 2.45| 2.10| 1.84| 1.63| 1.47| 1.34| 1.23| 1.13| 1.05| 0.98| 0.92| 0.87

DIMENSIONS

DIMENSIONS – SHIPPING

Models| Width

in (cm)

| Height

in (cm)

| Depth

in (cm)

| Weight

lb (kg)

1.75kW – 5.5kW| 11.25 (28)| 15.5 (38)| 8 (20)| 6.0 (2.7)
7.0kW – 11kW| 11.25 (28)| 15.5 (38)| 8 (20)| 8.0 (3.6)

INSTALLATION

ORIENTATION & CLEARANCE

• All models must be oriented with the inlet and outlet facing upward.
• Top clearance – a minimum of 12 inches (30.5 cm) to provide access for plumbing connections.
• Side clearance – a minimum of 8 inches (20.3 cm) to remove the screws and protective cover and to provide access for electrical wires to enter through the side of the unit.
• Bottom clearance – a minimum of 12 inches (30.5 cm) for access to and maintenance of heating elements. Do not store any items beneath the water heater.
• Front clearance – a minimum of 8 inches (20.3 cm). In the absence of a door or removable access panel in front of the heater, allow a minimum of 15 inches (38.1 cm) for cover removal and ease of service.

For Technical Information call 1-888-599-2837. A. O. Smith Enterprises Ltd. reserves the right to make product changes or improvements without prior notice.

1-888-599-2837 Toll-free Canada | A. O. Smith Enterprises Ltd. | 599 Hill Street West | Fergus, ON N1M 2X1
©2024 A. O. Smith Enterprises Ltd.

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