Mars Standard Series 2-CSI-Spec
Revised 2/3/2021
MARS AIR SYSTEMS, LLC
23 34 33 – 7
b.
N242-1: 42 Inch (1065 mm) Wide Units: 1945 feet/min (9.9 m/s) single
1/2HP motor/fan assembly.
c.
N248-1: 48 Inch (1220 mm) Wide Units: 1730 feet/min (8.8 m/s) single
1/2HP motor/fan assembly.
d.
N260-2: 60 Inch (1524 mm) Wide Units: 2592 feet/min (13.2 m/s) single
1/2HP motor/fan assembly.
e.
N272-2: 72 Inch (1830 mm) Wide Units: 2206 feet/min (11.2 m/s) two
1/2HP motor/fan assemblies.
f.
N284-2: 84 Inch (1830 mm) Wide Units: 1945 feet/min (9.9 m/s) two
1/2HP motor/fan assemblies.
g.
N296-2: 96 Inch (2440 mm) Wide Units: 1730 feet/min (8.8 m/s) two
1/2HP motor/fan assemblies.
h.
N2108-3: 108 Inch (2743 mm) Wide Units: 2206 feet/min (11.2 m/s) two
1/2HP motor/fan assemblies.
i.
N2120-3: 120 Inch (3050 mm) Wide Units: 2084 feet/min (10.6 m/s) two
1/2HP motor/fan assemblies.
j.
N2144-3: 144 Inch (3600 mm) Wide Units: 1730 feet/min (8.8 m/s) two
1/2HP motor/fan assemblies.
3.
Air Speed at Floor:
a.
Customer entry doors require a minimum of 600 fpm (3.05 m/s) at 3 feet
(914 mm) from floor.
4.
Air Inlet Grille and Filters:
a.
Location: Front.
b.
Speed: 2550 cu ft/min (1200 L/s), minimum, per motor/fan assembly.
1)
Type: Fixed air intake grille.
5.
Sound Pressure Level At 10 feet (3 m) From Nozzle:
a.
Single Motor/Fan Units: 66 dBA.
b.
Two Motor/Fan Units: 68 dBA.
c.
Three Motor/Fan Units: 71 dBA.
d.
Four Motor/Fan Units: 73 dBA
2.3
COMPONENTS
A.
Electric Heaters: Provide complete with motor control panel factory mounted to air
curtain housing, and thermostat to be field installed
1.
Temperature limit controller.
2.
Thermostat: Wall-mounted, 24-Volt operation, with heater on/off selection.
3.
Heating Coils: ETL approved as part of unit. Meets NEC and CEC tested by ETL
Certified to conform to UL2021(US) and CSA22.2 (Canada) Standards. Factory
mounted on the discharge end of the motor fan assembly and located within the
nozzle outlet.
B.
Steam Heaters: Provide finned tube steam coils for field mounting on air intake side of
the air curtain cabinet with opposite end connections.
1.
Meets NEC and CEC tested by ETL Certified to conform to UL1995(US) and
CSA22.2 (Canada) Standards.
2.
Output: Air curtain manufacturer's standard, one-row coils.
3.
Coils: Certified in accordance with AHRI 410.
4.
Connections: Opposite end.
