ax Dimensions
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Table of Contents:
Section
Description
Page
1
Safety Instructions ....
3

1.1
Warning and Danger Symbols ........
3
1.2 Inverter
Precautions
. 3
1.3 Battery
Precautions
...... 3
2
Specifications .........
4
3
Technical Description ......
5

3.1
Standby Power Systems .........
5


3.1.1 Inverter Power Mode ..
5


3.1.2 External Power Mode ..
5

3.2
Available Options ..
6


3.2.1 Battery Charger B3 Option ..
6


3.2.2 Branch Breakers G, G1, G2 & G3 Options ..
6

3.2.3
LCD
Remote
Control/Status
Panel R1, R4 Options
6


3.2.4 Transfer Switch T or T1 Option
6
4
SPS Physical Description ....
7

4.1
SPS Module .....
7
4.2 LCD
Remote
Control/Status Panel .....
8
5
Installation ...
9

5.1
Tools Needed for Installation ....
9

5.2
System Components ......
9

5.3
Mounting the SPS .
9


5.3.1 Chassis Bonding Lug ...
9


5.3.2 Temperature Compensated Sense Wire ...
9


5.3.3 Connecting the LCD Remote Control/Status Panel .
9
6
SPS Wiring ....
11

6.1
DC Wiring ..
11


6.1.1 Inverter Cable ....
11


6.1.2 Charge Cable ........
11


6.1.3 Connecting the DC Wires .....
12


6.1.4 Deep Cycle Batteries ...
12

6.2
AC Wiring .....
13


6.2.1 AC Output ....
13


6.2.2 AC Input ......
13

6.3
DC Wiring Diagram ..
14

6.4
AC Wiring Diagram ..
15


6.4.1 AC Wiring Diagram for G, G1, G2 Options ..
15


6.4.2 AC Wiring Diagram for G3 Option
16
7
Operation and Troubleshooting .......
17

7.1
Operation ..
17


7.1.1 Setting the Battery Size and Type ......
17


7.1.2 Turning the SPS On .......
17


7.1.3 Battery Charger Draw Set Input ...
18


7.1.4 Screen Messages ..
18

7.2
Troubleshooting .........
20


7.2.1 Troubleshooting Chart ......
20


7.2.2 System Flow Chart
22
8
Warranty ...
24



Airpax Dimensions
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Safety Instructions

Important: Read this manual before installation, it contains important safety,
installation, and operating instructions. Save this manual and keep it in a safe place.

1.1 Warning and Danger Symbols:

To reduce the risk of electrical shock and to ensure the safe operation of your
Dimensions power inverter, the following symbols are used throughout the manual.

ATTENTION:

Important operating instructions.
Follow them closely.
DANGER:

Risk of personal harm and/or
electrocution exists in this area.
Use extreme caution.

SAFETY CERTIFICATION:

This is a UL and CUL Certified product that complies with all the safety
standards required in the USA and Canada for land vehicle inverters.



1.2 Standby Power System Precautions:

Standby Power Systems produce hazardous voltages. To avoid risk of harm or fire,
the unit must be properly installed.
There are no user serviceable parts inside, do not remove the cover.
The Standby Power Systems should not be mounted in a location that may be
exposed to rain or spray.
The Standby Power Systems should not be installed in a zero clearance enclosure.
Damage to the Standby Power Systems will occur if correct polarity is not observed
when installing the DC input cables.
Damage to the Standby Power Systems will occur if an external AC power source is
applied to the inverters AC hardwire output.
The Standby Power Systems contains a circuit breaker and capacitor that may
produce a spark. Do not mount in a confined battery or gas compartment.
Be sure the Standby Power Systems is turned OFF during installation.

1.3 Battery Precautions:

Working in the vicinity of lead-acid batteries is dangerous. There is a risk of acid
exposure.
Batteries generate explosive gases during operation.
There is risk of high current discharge from shorting a battery that can cause fire
and explosion. Use insulated tools during installation.
Remove all rings, watches, jewelry or other conductive items before working near
the batteries.
Inspect the batteries once a year for cracks, leaks or swelling.

Dispose of the batteries according to local regulations. Do not incinerate batteries;
risk of explosion exists.



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Specifications
Millennium Series
Standby Power Systems















































12X16B3GR1T, 12X20B3GR1T,
12X25B3GR1T, 12X30B3GR1T,
12X36B3GR1T
Environmentally Friendly,
Quiet, Reliable, AC Power
MODEL NUMBER
12X16
12X20
12X25
12X30 12X36
Output Power (Watts Cont.)
1,600 2,000 2,500 3,000 3,600
Output Current (Amps AC)
Up to 13
Up to 17
Up to 21
Up to 25
Up to 30
Peak Output (Amps
AC)
55 70 80 90 90
Output Rating: (hp)
1
/3
½ ¾ 1 1½
Input Current (Amps DC)
Up to 160
Up to 200
Up to 250
Up to 300
Up to 360
Weight
(lbs.)
40 44 49 53 58
Dimensions LxWxH (Inches)
15¾ x 11½ x 7¾
BATTERY CHARGER B3
(Included)

3 step charger with automatic conditioning; Temperature compensated
output voltage; selectable between wet and sealed lead acid batteries;
selectable between small and large battery banks
Output Current
(Amps
DC)
75 100 130 140 140
Input Current (Amps AC)
Up to 16
Up to 21
Up to 26
Up to 28
Up to 28
TRANSFER RELAY T or T1
(Included)

Fail-safe shore power Transfer Relay
Current Rating (Amps AC)
30 with the T option and 50 with the T1 option
Transfer Time (milliseconds)
Less than 16 typical
Output Voltage (VAC)
120 RMS ±5%
Output Frequency:
60 Hz ± 0.05%
Output Waveform:
Quasi-sine wave, with waveform stabilizer
Input Voltage: (VDC)
11 to 14
Operating Temperature:
-20° to 40° C (0° to 104° F)
Efficiency:
Up to 93%

Other Design Features:
Thermally controlled cooling fan.
Branch Breakers: G option Two @ 15A each; G1 option Two
@ 20A and one @ 15A each; G2 option Two @ 20A each; G3
option Three @ 20A each.
Enclosed AC and DC cable connections with strain relief.
Built-in battery charger B3 and 30-amp transfer relay switch
T or 50-amp transfer relay T1.

Remote Control Panel R1 and R4:
LCD Display Blue background, 16 white characters by two lines
with user-friendly messages.
Dimensions W x H x D: 5.75 x 3.75 x 1.25
Optional DC master disconnect switch control wire with assembly
panel 141315-1 only (R1 option)

Unit Protection:
Automatic electronic short
circuit/overload protection
Automatic high temperature
shutdown
Output circuit breakers

Battery Protection:
Automatic low battery shutdown at
10.5 VDC (with in-rush delay)


Usage: Any 120 VAC, 60 Hz single-phase products within the standby power systems rating that does not
require a pure sine waveform.
Warranty: Full year parts and factory labor


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Technical Description

3.1 Standby Power System:

A Standby Power System is a DC to AC power inverter with a battery charger B3 and
an automatic fast transfer switch T or T1.

Note: In this manual, we will use the acronym SPS when referring to a Standby Power
System.

A remote LCD control/status panel controls the SPS and provides system status by
displaying user-friendly screen messages.

The system has two operational modes: Inverter power mode and external power mode.

3.1.1 Inverter Power Mode:
The SPS converts DC power from batteries to usable
120 VAC, 60 Hz power. The direct current (DC) that enters the SPS is filtered by a large
input capacitor and switched On and Off by the Metal Oxide Silicon Field Effect
Transistors (MOSFET) at a rate of 60 cycles per second, and directed into the
transformer which steps the voltage up to 120 volts. The unit has a Digital System
Processor (DSP) to control the output voltage and frequency as the DC input voltage
and/or output load varies. The signal output waveform shape is not sinusoidal; it has a
total harmonic distortion of 31% and a maximum single harmonic distortion of 25%.

3.1.2 External Power Mode:
120 VAC, 60 Hz external power can be applied
directly to the SPS by hardwire connections to the AC input wire leads provided in the
field-wiring compartment. When external power is present, the internal transfer switch
cannot be defeated; it automatically turns the DC to AC inverter OFF and activates the
three-step battery charger. At this time the loads attached to the SPS output will
operate directly from the external power line even if the SPS has been turned OFF
manually. The internal transfer relay automatically switches the SPS back to inverter
power mode in the absence of external power whenever the SPS was previously set to
ON or to standby mode.


















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3.2 Available Options

3.2.1 Battery Charger B3 Option (Included):
The three-step battery
charger feature requires the transfer switch T option to operate. External power 120
VAC, 60 Hz is applied as explained in section 3.1.2 The internal transfer switch
automatically turns the DC to AC inverter OFF and turns the three-step built-in battery
charger ON. The battery charger cannot be defeated at this time and will engage even if
the inverter has been set OFF manually.
The 3-steps of the charging process ar