Mars Air Systems N2 Unheated 2 Series, Manual

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STD2 (Standard 2) Series
Unheated
Model Lengths 36” – 144”
14716 S. BROADWAY, GARDENA, CA 90248 ● Ph: (310)532-1555 Fax: (310)-532-3030 ● www.marsair.com
© 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, 04/07/22
Model
Distance from
nozzel (in)
Avg. Core Velocity
(FPM)
40 1207
80 856
120 710
160 637
200 588
Projection Velocity
STD236-1U*
STD2
S e r i e s : S t a n d a r d 2
72 2 U H OB
L E N G T H O F U N I T
# OF MOTORS
U = U N H E A T E D
V O L T A G E C O D E
C O L O R
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.
For total FLA, multiply motor FLA by # of motors; Ampacity (MCA) = total FLA X 1.25
Electrical Data
Full Load Amp
(FLA)
Single Phase Three Phase
Unit Voltage (Voltage Code)
Alternate voltage codes with FLA data:
277v/1Ø/60Hz (L) ‐ 2.7A per motor
220v/1Ø/50Hz (U) ‐ 2.5A per motor
380/415v/3Ø/50Hz (W) ‐ 1.1A per motor
Explosion proof motor FLA data (INS ‐ XP ‐ STD2):
115v/1Ø/60Hz (A) ‐ 7.4A per motor
208/230v/1Ø/60Hz (D) ‐ 3.7A per motor
208/230v/3Ø/60Hz (G) ‐ 1.8/1.6A per motor
460v/3Ø/60Hz (H) ‐ 0.8A per motor
Washdown motor FLA data (INS ‐ WD ‐ STD2):
115v/1Ø/60Hz (A) ‐ 7.4A per motor
208/230v/1Ø/60Hz (D) ‐ 3.9/3.7A per motor
208/230v/3Ø/60Hz (G) ‐ 2.1/2.0A per motor
460v/3Ø/60Hz (H) ‐ 1.0A per motor
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 (NEMA 1)

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 (TENV)
Note: Washdown and explosion proof units will require higher motor
amperage. Control panel will require OL/MP with higher amperage range (use
MCP ‐ MWD or MCP ‐ MXP accessory)
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.