IOTA Specifications

The DLS Series Battery Charger/Power Converter is warranted from defects in ma-
terials or workmanship for two years from date of retail purchase, and limits the rem-
edies to repair or replacement. This warranty is valid only in the continental United
States and Canada. For complete warranty details, contact Customer Service or visit
www.iotaengineering.com.
MODELS
IOTA REV 071515
WARRANTY
DLS-27-15
BATTERY CHARGER/POWER CONVERTER
DLS-27-15
DLS-27-15/IQ4 (with integrated IQ Smart Charger)
MOUNTING FOOTPRINT
Disconnect the positive side of the battery before installation. Connect the positive
(red) and negative (black) terminal lugs to battery or load. Always use the proper
size wire based on the amperage of the converter and the battery. When connecting
to a battery, a breaker should be installed within 18″ of the battery, connecting the
battery positive to the line side of the breaker, and the DLS to the load side. Connect
“Chassis Bonding Lug” on the DLS to vehicle chassis or other grounding source.
Plug the DLS A.C. input cord into a 120 volt 3-wire grounded source. See chart
for maximum current draw and required input voltages. For complete installation
guidelines, refer to the installation manual.
INSTALLATION OVERVIEW
IOTA ENGINEERING PO BOX 11846 TUCSON, AZ 85734 TEL: [phone]-IOTA (4682) FAX: [phone] WEB: www.iotaengineering.com
DUAL VOLTAGE JACK
The DLS-27-15 is equipped with a Dual Voltage Jack and Dual
Voltage Plug that allows manual switching from a long-term float
voltage of 27.2vdc to 28.4vdc. When the Dual Voltage Plug is
inserted in the jack, the voltage increases to 28.4vdc for oc-
casional fast charging. When the plug is removed, the voltage
drops to 27.2vdc to reduce battery water loss.
The Dual Voltage Jack also allows for easy installation of an
external IQ4 Smart Charger for automatic 3-stage charging
(optional). If the unit is equipped with an internal IQ4 smart
charger, two-step charging is not needed and the Dual Voltage
Jack is disabled. For details on 3-stage charging voltages, refer
to the IQ4 instruction manual.
DUAL VOLTAGE JACK
DUAL VOLTAGE PLUG
6.00"
6.00"
8.00"
9.67"
6.20" 6.20" 6.70"6.70"
3.40"
RADIUS .125"
NEMA 5-15P PLUG
FOR 15A RECEPTACLE
CORD LENGTH:
UP TO 36.00" MAX
PLUG CONFIGURATION
#14 #12 #10 #8 #6 #4 #2 #0 #000
7 ft 11 ft 18 ft 28.5 ft 45.5 ft 73 ft 116 ft 184.5 ft 293 ft
2.13 m 3.35 m 5.49 m 8.69 m 13.87 m 22.25 m 35.36 m 56.24 m 89.31 m
Recommended Lengths per Wire Gauge for 2% Maximum Drop In Voltage
Length values are for copper wire. For aluminum or copper-clad aluminum wire, lengths
must be reduced.
Values listed here are for normal room temperature (77°F or 25°C). For increased temperatures,
lengths must be reduced accordingly. (For reference, at 140°F or 60°C, lengths need to be
reduced by 15%.