4.
Section 100 System Installation Instructions
101. Specifications
Input
• Input voltage: Universal 120 or 277VAC.
• Input frequency: 60HZ ±2%
• Operating temperature : 20ºC to 30ºC (68ºF to 86ºF)
• Input surge protection: Meets UL 924
Output
• Output voltage: Universal 120 or 277VAC, 60HZ. Other voltages available upon request
• Output regulation: (static) ±5% based on a 0% - 100% resistive load
• Minimum loading: none required
• Output distortion: Less than 3% THD linear load
• Load power factor: .44 lead to .44 lag
• Output frequency: ±0.3 Hz during emergency
• Time to transfer to inverter after a utility power failure: <1 second
Battery
• Battery type: Maintenance free sealed lead calcium
• Battery charger: Fully automatic dual-mode with temperature compensation
• Recharge time: Meets UL requirements (96 Hours)
• Battery protection: Automatic low-battery voltage disconnect and reverse polarity protection.
• Battery switch: Also used as battery isolator
• Standard battery: Sealed lead-calcium: 10-year life
• Battery voltage: 24 or 48 (system dependent - See Table 1 below)
• Runtimes: 90 minutes standard.
• Operating temperature: 20°C to 30°C (68°F to 86°F)
• Relative humidity: 95% non-condensing
Note: Battery performance rated at 25°C (77°F)
Table 1
System
On-Line System
Number
Battery
Battery
AC Input Current
Thermal
Model
Efficiency
Of
Voltage
Current
120VAC
277VAC
Output In BTUs
Number
(Full Load)
Batteries
(VDC)
(Amps)
(Max.)
(Max.)
On-Line Emergency
VST
-55/125
98%
2
24
3.4
1.2
0.52
9
90
VST
-110/125
98%
2
24
5.7
1.2
0.52
9
95
VST
-110/250
98%
4
48
3.3
2.4
1.1
18
163
VST
-220/250
98%
4
48
5.6
2.4
1.1
18
167
System
Input/ Capacity Battery
System
Model
Output For 11/2 Hours Voltage
Cabinet Dimensions
Weight*
Number
Type
Volts
In Watts
(VDC)
Length
Height
Depth
(Lbs.) (Kg.)
VST
-55/125-S
Surface
120/277
55
24
16
5
/
8
”
(42.2cm)
11
5
/
8
”
(29.5cm)
4
1
/
4
”
(10.8cm)
32
14
VST
-110/125-S
Surface
120/277
110
24
16
5
/
8
”
(42.2cm)
11
5
/
8
”
(29.5cm)
4
1
/
4
”
(10.8cm)
38
17
VST
-110/250-S
Surface
120/277
110
48
16
5
/
8
”
(42.2cm)
11
5
/
8
”
(29.5cm)
4
1
/
4
”
(10.8cm)
47
21
VST
-220/250-S
Surface
120/277
220
48
16
5
/
8
”
(42.2cm)
11
5
/
8
”
(29.5cm)
4
1
/
4
”
(10.8cm)
60
27
VST
-55/125-R
Recessed
120/277
55
24
18
1
/
8
”
(46.0cm)
13
1
/
8
”
(33.3cm)
4
1
/
4
”
(10.8cm)
32
14
VST
-110/125-R
Recessed
120/277
110
24
18
1
/
8
”
(46.0cm)
13
1
/
8
”
(33.3cm)
4
1
/
4
”
(10.8cm)
38
17
VST
-55/125-T
Ceiling Grid 120/277
55
24
23
7
/
8
”
(60.6cm)
6
1
/
4
”
(15.9cm)
8.0”
(20.3cm)
32
14
VST
-110/125-T
Ceiling Grid 120/277
110
24
23
7
/
8
”
(60.6cm)
6
1
/
4
”
(15.9cm)
8.0”
(20.3cm)
38
17
* System weights shown include installed batteries
Table 2
