AQUASTAR LST100 Pool and Spa Light Transformer Instruction Manual
- June 4, 2024
- AQUASTAR
Table of Contents
AQUASTAR LST100 Pool and Spa Light Transformer
IMPORTANT SAFE TY INSTRUCTIONS
READ, FOLLOW, AND UNDERSTAND ALL INSTRUCTIONS AND WARNINGS
WARNING – RISK OF FIRE OR ELECTRICAL SHOCK
- Special wiring methods are needed if the installation requires running wire through a building structure.
- Do Not submerge transformer.
- Do Not exceed the maximum ratings of individual components, wiring devices, and current carrying capacity of conductors.
- Select cable for each secondary output in accordance with tables in this manual.
- Select power source by combining bulb wattage.
- For landscape lighting appliances, low voltage cable shall be buried a maximum of 6 inches (15.2 cm) in order to connect to the main low voltage cable.
- Installation shall be done by a qualified professional according to all state, local, and national electrical codes.
GENERAL INFORMATION
These safety transformers were created to provide 12 volts to pool/spa lights, submersible fixtures, outdoor garden lights. In the event of a fault or overload, the built-in circuit can cut power to the transformer. These transformers are designed for direct connection to underwater lights in pools and spas.
SPECIFICATIONS
- Enclosure Size: 71/4” (19.4 cm) high x 51/4” (13.3 cm) wide x 41/2” (11.4 cm) deep. Mounting brackets top and bottom.
- Enclosure Type: LST100 and LST300 – 0.048” corrosion resistant steel with electrostatically applied paint.
- Knockouts: Total of ten 1/2”- 3/4” combination. (4) bottom, (2) right side, (2) left side, (2) back.
LANDSCAPE LIGHTING APPLICATIONS
- Use only CSA or UL certified low-voltage cable.
- Low voltage cable shall be buried a maximum of 6’’ (15.2 cm) in order to connect to the main low voltage cable.
| Transformer Wattage (W) | Minimum Gauge AWG |
|---|---|
| 300 | 12 |
| 100 | 16 |
POOL/SPA UNDERWATER LIGHTING APPLICATION
For field wiring information, please refer to the instructions attached to
inside of front cover.
INSTALLATION
- Make sure that all unused taps (leads) are separately insulated.
- Use the Tran former Cable-Voltage Selection Charts as a guide to determine the correct wire size.
- The voltage at lamp terminals after installation should be 12 ± 0.3 VAC.
- Voltages above 12.3 VAC at the light may cause the internal safety fuse of the transformer to switch off and on.
To prevent this from happening, follow the Transformer Cable-Voltage Selection Charts for correct voltage and wire gauge selection.
- Select power source by combining bulb wattage.
- Determine length of cable run(s).
- Determine wire gauge needed to deliver necessary power.
- Connect cable to output tap of transformer given in table.
Transformer Cable-Voltage Selection Charts
For Model: LST100/LST300 Transformers
Transformer Cable – Voltage Selection Chart
Length of Cable| 100 W Transformer
10 ft| 13 V| 12 V| 12 V| 12 V| 12 V| 12 V
25 ft| 13 V| 13 V| 12 V| 12 V| 12 V| 12 V
50 ft| 14 V| 13 V| 13 V| 12 V| 12 V| 12 V
75 ft| | 14 V| 13 V| 13 V| 12 V| 12 V
100 ft| | | 13 V| 13 V| 13 V| 12 V
125 ft| | | 14 V| 13 V| 13V| 12 V
150 ft| | | 14 V| 13 V| 13 V| 13 V
175 ft| | | 14 V| 14 V| 13 V| 13 V
200 ft| | | | 14 V| 13 V| 13 V
250 ft| | | | 14 V| 13 V| 13 V
Wire Gauge (AWG)| **#16*| #14| #12| #10| #8|
#6**
-
- Minimum Gauge Cable
- ** Blank fields indicate conditions not suited for wiring
Transformer Cable – Voltage Selection Chart
Length of Cable| 300 VA Transformer
10 ft| 12 V| 12 V| 12 V| 12 V
25 ft| 13 V| 13 V| 12 V| 12 V
50 ft| 14 V| 13 V| 13 V| 12 V
75 ft| | 14 V| 13 V| 13 V
100 ft| | | 13 V| 13 V
125 ft| | | 14 V| 13 V
150 ft| | | 14 V| 13 V
175 ft| | | 14 V| 14 V
200 ft| | | | 14 V
250 ft| | | | 14 V
Wire Gauge (AWG)| **#12*| #10| #8| #6**
-
- Minimum Gauge Cable
- ** Blank fields indicate conditions not suited for wiring