STD2 (Standard 2) Series
Unheated
Model Lengths 36” –
144”
14716 S. BROADWAY, GARDENA, CA 90248 ● Ph: (310)532-1555 Fax: (310)-532-3030 ●
© Copyright Mars Air Systems, LLC 2014
NOTE: MARS AIR SYSTEMS, LLC reserves the right to change specifications and product design without notice. Such revisions do not entitle the buyer to corresponding changes, improvements, additions, or replacements
for previously purchased equipment.
MARS AIR SYSTEMS, LLC
●
GARDENA, CA
●
USA
VM, 05/21/21
STD2
Series: Standard 2
72 2 U H OB
LENGTH OF UNIT
# OF MOTORS
U = UNHEATED
VOLTAGE CODE
COLOR
EXAMPLE
115v/1Ø
(A)
208/230v/1Ø
(D)
208/230v/3Ø
(G)
460v/3Ø
(H)
575v/3Ø
(I)
STD236-1U*-OB
5.1
2.5
1.8/1.6
0.8
0.7
STD242-1U*-OB
5.1
2.5
1.8/1.6
0.8
0.7
STD248-1U*-OB
5.1
2.5
1.8/1.6
0.8
0.7
STD260-2U*-OB
10.2
5.0
3.6/3.2
1.6
1.4
STD272-2U*-OB
10.2
5.0
3.6/3.2
1.6
1.4
STD284-2U*-OB
10.2
5.0
3.6/3.2
1.6
1.4
STD296-2U*-OB
10.2
5.0
3.6/3.2
1.6
1.4
STD2108-3U*-OB
15.3
7.5
5.4/4.8
2.4
2.1
STD2120-3U*-OB
15.3
7.5
5.4/4.8
2.4
2.1
STD2144-3U*-OB
15.3
7.5
5.4/4.8
2.4
2.1
* - Use corresponding letters in "Electrical Data" columns to complete the model numbers.
Alternate voltage codes with FLA (Full Load Amp) data:
277v/1Ø/60Hz (L) - 2.7A per motor
380-415v/3Ø/50Hz (W) - 1.1A per motor
220v/1Ø/50Hz (U) - 2.5A per motor
For total FLA, multiply motor FLA by # of motors.
Ampacity (MCA) = total FLA X 1.25
Electrical Data
(FLA)
Single Phase
Three Phase
Unit Voltage (Voltage Code)
Model
Distance from
nozzel (in)
Avg. Core Velocity
(FPM)
40
1207
80
856
120
710
160
637
200
588
Projection Velocity
STD236-1U*
MARS Air Systems, LLC certifies that the Air Curtains shown on this data
sheet are licensed to bear the AMCA seal. The ratings shown are based
on tests and procedures performed in accordance with AMCA Publication
211 and comply with the requirements of the AMCA Certified Ratings
Program.
The AMCA Certified Ratings Seal applies to airflow rate, average outlet
velocity, outlet velocity uniformity, velocity projection and power rating at
free delivery only.
NOTE: Models STD260-2, STD264-2, STD278-2, STD296-3, and
STD2108-2 are not AMCA Certified.
Unheated Data Sheet
Applications: Environmental Separation (up to 12
’) and
Insect Control (up to 10
’
)
Features:
❖
1/2 HP Continuous Duty TEAO Motors
❖
Sleek self-contained one-piece heavy gauge corrosion proof paint
lock metal design
❖
ETL Certified to conform to UL 507 (US) and CSA 22.2 (Canada) Standards (Indoor/Outdoor Use)
❖
AMCA Certified to AMCA 211 (see table above for models available)
❖
(4) 7/16” top and wall mounting holes provided, (2) on each end
❖
Cabinet has sufficient strength for fastening to wall on both ends without intermediate support
❖
Adjustable air directional vanes with 40° sweep front to back
❖
Standard color is Obsidian Black
❖
Rust preventative electrostatic polyurethane powder coating
❖
5-year parts warranty
❖
Freight Included (FOB Continental USA)
❖
Proudly Made in the USA
Note:
All STD2 (1) motor units
up to 48”
are shipped with the Motor Fan Assembly (MFA) factory installed inside the air curtain
housing. For all other models, the MFA are shipped loose to minimize freight damage
Mars Recommended Accessories (See Submittals for additional details):
❖
Door Limit Switches
o
99-014, Combination mechanical switch, 250v, 1HP Max
o
99-125, Industrial surface mounted magnetic switch (controller required)
❖
Controllers
o
MCPA-
†
U*, Motor Control Panel, 120V control voltage (
†
= # of Motors, * = Voltage Code)
o
MCP-TD, Adjustable time delay, 1sec-100hr (panel required)
o
MCP-24V, Low voltage control option (panel required)
o
BMS-303, BMS for monitor and control (panel required with MCP-24V)
Note: Dry contact provided in panel for monitoring motor. 24Vac signal provided from panel for controlling
motor
o
SK-UU, SimpleLink, 115V-230V, 1PH, 2Mtr & 1HP max, Integral Control, Nema1 (housing depth will
be
17 3/8” deep
)
❖
Brackets
o
B0004,
Adjustable mounting bracket set, 3 ½” clearance
o
B0005, Adjustable mounting bracket set
, 7”
-
13” clearance
o
B0041, Transom mounting bracket set for STD2
❖
Filters
o
J21**-
Ɨ, ¼” aluminum pressed frame bank filters (** = Model Length, Ɨ = # of Motors)
❖
Clean Air Series Sections
o
HEC2**-OB, HEPAC Section (** = Model Length)
o
UVCS**-*-OB, UV Section (** = Model Length, * = Voltage Code)
❖
Severe Duty and Finish
o
HSG-304SS-STD, 304 Stainless steel housing construction
o
INS-WD-STD2, Washdown motor fan assembly, IP54
o
INS-XP-STD2, Explosion resistant motor fan assembly,
Class 1, Division 1, Group D
Note:
Washdown and explosion proof units will require higher motor
amperage. Please specify at the time order for correct panel rating.
Sound Levels: (measured at 10’
in an open field)
1 Motor Unit = 66 dBA, 2 Motor Unit = 68 dBA, 3 Motor Unit = 71 dBA, &
4 Motor Unit = 73 dBA
STD2 (Standard)
Series 2
Model Number
Nozzle Length
(in)
Length
(in)
Depth
(in)
Height
(in)
Motor
(hp)
Weight
(lbs)
Max Core Velocity
at Nozzle (fpm)
Avg Velocity
(fpm)
Volume
(cfm)
Uniformity
(%)
Power Rating
(watts)
STD236-1U*-OB
36
36
13
11
1/2
60
5960
2206
1379
84
500
STD242-1U*-OB
42
42
13
11
1/2
65
4865
1945
1418
87
510
STD248-1U*-OB
48
48
13
11
1/2
70
4247
1730
1442
85
550
STD260-2U*-OB
60
60
13
11
Two 1/2
90
6737
2592
2700
93
940
STD272-2U*-OB
72
72
13
11
Two 1/2
120
5960
2206
2758
84
1000
STD284-2U*-OB
84
84
13
11
Two 1/2
125
4865
1945
2836
87
1020
STD296-2U*-OB
96
96
13
11
Two 1/2
135
4247
1730
2884
85
1100
STD2108-3U*-OB
108
108
13
11
Three 1/2
175
5960
2206
4137
84
1500
STD2120-3U*-OB
120
120
13
11
Three 1/2
185
4660
2084
4341
92
1570
STD2144-3U*-OB
144
144
13
11
Three 1/2
200
4247
1730
4326
85
1650
Note: Data above for 1725 RPM at 60 Hz, 50 Hz is 1425 RPM with a 17%
reduction in the performance data.
* - Use corresponding letters in "Electrical Data" columns to
complete the model numbers.
AMCA Certified Lab Data
Mechanical Data
1. The AMCA Certified Ratings Seal applies to airflow rate, average outlet velocity, outlet velocity uniformity, velocity projection and power rating at free delivery only.
2. Rated data shown are only for base (unheated) units, as shown.
