Mars LoPro Series User manual
LoPro2 Submial Package
14716 S. BROADWAY, GARDENA, CA 90248 ● Ph: (310)532 1555 Fax: (310) 532 3030 ● www.marsair.com
© Copyright Mars Air Systems, LLC 2014
LPV2 Unheated Series 2
LoPro Series 2
Air Curtain
Submittal Package
Submitted by:
Mars Air Systems, LLC
14716 S. Broadway
Gardena, CA 90248
Project Name
P.O.#
S.Q.
Company
Print Name
Signature
Date Company Seal or Stamp
(Electronic Signature Preferred)
NOTE: MARS AIR SYSTEMS, LLC reser es the right to change speci%ca&ons and product design without no&ce. Such re isions do not en&tle the buyer to corresponding changes, impro ements, addi&ons, or replacements
for pre iously purchased equipment.
MARS AIR SYSTEMS, LLC ● GARDENA, CA ● USA
LoPro2 Submial Package
14716 S. BROADWAY, GARDENA, CA 90248 ● Ph: (310)532 1555 Fax: (310) 532 3030 ● www.marsair.com
© Copyright Mars Air Systems, LLC 2014
Table of Contents
Page # Content
3-4 LPV2 Unheated Submial
5-7 Typical Wiring iagrams
8-9 Accessory Installa'on Supplement
10-13 Installa'on, Opera'on and Maintenance
14-15 Troubleshoo'ng Guide
16 Warranty
17-26 CSI Spec
27 Reference Links
NOTE: MARS AIR SYSTEMS, LLC reser es the right to change speci%ca&ons and product design without no&ce. Such re isions do not en&tle the buyer to corresponding changes, impro ements, addi&ons, or replacements
for pre iously purchased equipment.
MARS AIR SYSTEMS, LLC ● GARDENA, CA ● USA
LPV2 (Low Profile Variable Speed 2) Series
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LENGTH OF UNIT
# OF MOTORS
U = UNHEATED
VOLTAGE CODE
COLOR
EXAMPLE
LPV2 (Low Profile Variable Speed 2) Series
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Main power
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breaker at 115v
1MTR
Door SW
C
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LPV2 Wiring
PUR
BLK
WHT
YEL
ORG
GRN
1MTR
Door SW
C
NC
PUR
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WHT
YEL
ORG
GRN
LPV2/LPN2 115V Unheated
Wiring diagram with Door switch
LPN2 Wiring
Main power
from circuit
breaker at
208/230v
1MTR
Door SW
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LPV2 Wiring
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LPV2/LPN2 208/230V Unheated
Wiring diagram with Door switch
LPN2 Wiring
YELYEL
Document No: ACC-IOM
Date: 04/13/2013
ACCESSORY INSTALLATION SUPPLEMENT
Door Limit and Magnetic Reed Switches
1. Mars door limit and magnetic reed switches are
available with NEMA 1, 4X and 7 ratings. Contact the
factory for additional ratings and details. (See FIG. 1
for typical single swing, hinged door type, door limit
switch installation)
FIG. 1
2. Use light gauge materials when field fabricating
brackets to activate and deactivate the door limit
switch(s). (FIG. 2) Figure 2 also shows the typical
installation of the combination plunger/roller type
NEMA 1 door limit switch, for all non-hinged style
doors.
FIG. 2
3. All wiring must be per local and NEC (National Electric
Code) codes.
4. Panels or controllers may be required. Refer to wiring
diagram inside the control panel box.
FIG. 3
FIG. 4
Document No: ACC-IOM
Date: 04/13/2013
Bracket Installation
1. Side Extension Plates: For doorways wider than the air
curtain, use combination of Side Extension Plates and
Adjustable Mounting Brackets. (FIG. 5)
FIG. 5 (LPV SHOWN)
2. Adjustable Mounting Brackets: For installation of air
curtain over drum-style roll-up door, use Extended
Wall Mounting Brackets. (FIG. 6)
FIG. 6 (STD SHOWN)
3. Extended Wall Mounting: For Tandem Mounting of air
curtain over sectional style door, use either wall
mounting angle brackets or threaded rods.
4. Top Mounting Brackets: For overhead installation of
units, use in conjunction with the threaded holes
provided on top of unit.
Note: Angle brackets, threaded rods and I Beams are
provided by others. (FIGS. 7 & 8) All optional brackets
are not available for WMI/WMH and BD Series.
FIG. 7 (WMI/WMH Shown)
FIG. 8 (BD Shown)
14716 S. Broadway St., Gardena, CA 90248
(310) 532–1555 ● (800) 421-1266
Fax: (310) 324-3030
www.marsair.com
Document No: LP2-IOM
Date: 08/21/20
LOW PROFILE (LPV2) VARIABLE SPEED AND LOW PROFILE
(LPN2) ETL SANITATION CERTIFIED COMMERCIAL SERIES
Installation, Operation and Maintenance Manual
Please read and save these instructions. Read carefully before attempting to assemble, install, operate, or maintain
the product described. Protect yourself and others by observing all safety information. Failure to comply with these
instructions could result in personal injury and/or property damage. Retain these instructions for future reference.
OVERVIEW
Mars Air Curtains are
designed to cover
door openings,
providing both
temperature
control/environmental
separation and flying
insect control, when
the building’s doors
are opened. Typical
installation heights
are: LoPro Series; LPV2 (Variable Speed) models
(Environmental up to 8’), LPN2 (ETL Sanitation for
Customer Entrances) models (Flying Insect Control up to
7’) and LPN2-F (ETL Sanitation for Counter Top/Pass
Through Windows) models (Flying Insect Control up to 4’
from Counter Top) All ETL Sanitation Certified Models
should be mounted at the Flying Insect Control heights
referenced above. The units are typically wall mounted
horizontally above the door opening. They can also be
suspended from the ceiling. The units are ETL Listed,
Canada and US, for either an inside or outside mount and
ETL Sanitation Certified. Heated units must be mounted
on the inside or the protected side of the opening. The
motors used in all LoPro Series are 1/6HP.
The LoPro Series come standard with a stamped air
intake screen(s). The LPV2 models can be configured
with an aluminum mesh filter(s) as an option. The LPN2
models 25” and all LPN-F models come standard with an
aluminum mesh air intake filter(s) in conjunction with the
punched air intake screen(s).
GENERAL SAFETY
INFORMATION
Use this product only in
the manner intended
by the manufacturer. If
you have any
questions, contact the
manufacturer. Only
qualified personnel
should install this
product. Installing
personnel should have
a clear understanding
of these instructions and should be aware of general
safety precautions. Improper installation can result in
electric shock, possible injury due to coming in contact
with moving parts, as well as other potential hazards.
WARNING
To reduce the risk of fire, electric shock, or injury to
persons, observe the following.
A. Always disconnect, lock and tag power source before
installing or servicing product.
B. Installation work or electrical wiring must be done by
qualified person(s) in accordance with all applicable
codes and standards, including fire-rated construction.
C. The combustion airflow needed for safe operation of
fuel burning equipment in the area may be affected by
the product’s operation. Follow the heating equipment
manufacturer’s guideline and safety standards, such as
those published by the National Fire Protection Agency
(NFPA), the American Society of Heating, Refrigeration
and Air Conditioning Engineers (ASHRAE) and local
code authorities.
D. When cutting or drilling into a wall or ceiling, be careful
not to damage elec
trical wiring and other hidden
utilities.
WARNING
When servicing the product, motor may be hot enough
to cause pain or injury. Allow motor to cool before
servicing.
RECEIVING AND INSPECTION
Upon receiving the product, check to make sure all items
including switches are accounted for by referencing the
Bill of Lading to ensure all items were received. Inspect
each carton for shipping damage before accepting
delivery. Notify the freight carrier if any damage is
noticed. The carrier will make notification on the delivery
receipt acknowledging any damage to the product. All
damage should be noted on all copies of the Bill of Lading
which is countersigned by the delivering carrier. A Carrier
Inspection Report should be filled out by the carrier upon
arrival and a report given to the Traffic Department. If
damaged upon arrival, file a claim immediately with the
carrier. Any physical damage to the unit after acceptance
is not the responsibility of Mars Air Systems.
UNPACKING
Verify that all parts, components and accessories, and
the correct quantities of each have been received. If any
items are missing, report shortages to Mars Air Systems
directly to arrange for obtaining the missing items. Again,
verify quantities received against those on the Bill of
Lading only, as multiple shipments may be involved.
INSTALLATION
Typical Mounting – Wall or Ceiling Mounted
Horizontally Above the Door Opening
1. Remove the air intake grille(s) and/or air intake filter(s)
from the product and set aside. Gently remove all
packaging materials, hardware, and all other
accessories from interior of unit prior to operating.
Severe unit damage will occur if these items are not
removed prior to operation.
2. Lay unit on its top with directional vanes pointing up and
remove the Tek Screws from the wall mounting plate,
just behind the discharge nozzle, and remove the
mounting plate from the unit. (FIG. 1) Measure the
mounting plate and center it over the opening. The air
curtain shall be equal to or greater than the width of the
opening.
3. Install the mounting plate(s) above the opening. Multiple
pre-punched 7/16” mounting holes are provided for your
convenience. These holes must be utilized to secure
the product to the wall. All hardware is field provided by
others.
4. Align the tabs on the rear of the unit with the slots
provided on the wall mounting plate (FIG. 2). The
bottom flange on the unit must also drop in the bottom
channel of the wall mounting plate. Replace the Tek
Screws to secure the unit in place.
Note: If the holes provided on the bottom of the unit and the
bottom of the wall mounting plate do not align, remove the
unit and re-install. The holes on the bottom channel of the
wall mounted plate must be on the bottom.
FIG. 1
FIG. 2
5. Mount the product such that the discharge is 1” above
the opening and all obstacles. (FIG. 3)
Note: If the product is installed higher than the
recommended 1” above the opening, then it must be
moved 3/8” away from the wall for every 1” that it is
moved up. Any void between the wall and the product
must be sealed, by others, to optimize performance.
WARNING
Precaution should be taken in explosive atmospheres.
6. Use four (4) threaded rods for overhead installation or
four (4) threaded bolts for wall installation. All hardware
is field provided by others. (FIG. 3)
FIG. 3
7. If applicable, optional Adjustable Mounting Brackets,
Side Extension Plates and Extended Wall Mounted
Brackets are also available for installations over a
Vertical Lift or Drum Roll-up type door. (Reference
Accessory Installation Supplement)
8. If applicable, for tandem installation or products
mounted side by side, allow no more than 6” between
the two products. For overhead installation using
threaded rods, the products may require a beam, by
others, to span the full distance of the mounting length.
(Reference Accessory Installation Supplement)
9. All wires must be connected internal of the unit and
some knockouts are provided. However, it may be
necessary to create your own knockout, as required.
10. The unit must be wired per NEC and local codes.
Electrical Field Wiring
The unit and any optional accessories must be wired with
the proper voltage to the junction box per the wiring
diagram. (FIG. 4, unheated products only)
FIG. 4
START-UP
This product has been assembled and tested at the
factory prior to shipping. The following procedures should
be performed to assure its performance. Before
continuing with the start-up, it is important to recognize
the safety controls furnished with the unit.
WARNING
The following items must all be completed by a qualified
installer and checked off when completed
A. Re-check that the product has been installed properly
and is level and secure.
B. Check all terminal screws are tight and field wiring is
connected in accordance to National Electrical Code
an
d wired per the enclosed wiring diagram. For
electric heated models, ensure that the coils are
secured and not touching each other on any metal
surface.
C. Verify proper voltage prior to powering the product.
(See product label for reference).
D. Check all field wired components “if supplied” are
wired correctly.
E. Check that the inlet air supply and the discharge air
supply are free of obstructions.
F. Check that all air filter(s) and/or air intake grille(s) are
in place and installed properly, as originally shipped.
G.
Verify voltage to the product once more and turn
power on.
H. Regardless of whether the product is mounted on the
inside or outside of the door opening, set the air
directional vanes in the discharge nozzle slightly
outward to approximately 10-15° towards the outside,
or the wind load. (FIG. 5).
NOTE
For accessory installation, reference Accessory
Installation Supplement.
For heated
products, reference Heated Products
Supplement.
WARNING
Prevent hazard of electrical shock. More than one
disconnect switch may be required to de-energize this
product.
MAINTENANCE
Routine maintenance is required to keep this product
operating at its peak performance and efficiency. Over
time, the housing, air intake grille, air intake filter, blower
wheels and motor(s) will accumulate a build up of dust,
debris and other residue. It is imperative to keep these
components clean. Failure to do so will not only lower
operational efficiency and performance, but also reduce
the useful life of the product. The time between cleanings
depends on the application, location, and daily hours of
use. On average, under normal use conditions, the
product should require a thorough cleaning once every
six (6) months.
To clean the product, perform the following:
1. Verify the product has been disconnected from the
power source.
2. Use a damp cloth and either a warm mild soapy water
solution or bio-degradable degreaser, to wipe down the
exterior components of the housing.
3. To access the interior of the product, remove the air
intake grille(s) and/or air intake filter(s). This is
accomplished by removing the screws on the face of the
air intake grille(s)/filter(s).
4. Thoroughly clean the air intake grille(s)/filter(s).
5. Thoroughly wipe down the motor, blower wheels and
blower wheel housings. Be careful not to spray the
motor with a water hose.
6. The motor(s) require no additional lubrication. They are
permanently lubricated and feature double sealed ball
bearings.
7. To re-install the product, reverse the procedures above.
8. Reconnect the power source to the product.
9. If you have any questions regarding the maintenance of
the product, contact the manufacturer.
SPECIAL APPLICATIONS
Outdoor Installation
For outdoor unit special consideration may be required
for enclosure and other components to minimize damage
caused by exposure to the outdoor elements. Contact
factory for special construction and costing.
Freezer and Cooler Installation
Air curtain must be mounted on the warm side for optimal
performance. LPV2 series with variable speed switch is
strongly recommended to control the air curtain air flow
velocity at the floor level.
High humid areas may require de-humidifier or additional
defrost cycle to minimize condensation and freezing for
freezer applications. We recommend the air curtain unit
to not replace doors but work in conjunction with door
opening sequence cycle. Contact factory for details.
CAUTION
The appliance is not to be used by persons (including
children) with reduced physical, sensory, or mental
capabilities, or lack of experience and knowledge, unless
they have been given supervision or instruction. Children
are not to play with the appliance.
DISCLAIMER
Mars 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.
I. For products with control panels, turn the HOA (Hand-
On-Auto) selector switch to “On” position and open the
door to energize the product. For products without a
control panel or an On/Off switch, open the door to
energize the product.
J. If heated products are installed, reference Heated
Products Supplement.
K. For three phase units, verify direction of rotation of
blower wheels (note direction arrows on the blower
wheel housing). Correct if needed by changing
polarity of three phase power.
L. VERY IMPORTANT Using a clamp meter, measure
the amperage to each motor and ensure that they do
not exceed the amperage listed on the product label.
M. If applicable, adjust the air intake grille(s) such that the
output air stream reaches the floor. For temperature
control and environmental separation applications, the
air stream sho
uld reach the floor with sufficient
strength to create an air seal around the door opening
without creating turbulent mixing of the inside and
outside air. For flying insect control applications, the
air stream should reach the floor with maximum
strength. If after proper installation and adjustment,
the product appears to be producing too little or too
much air for the application, contact the manufacturer.
WARNING
To reduce the risk of fire, electrical shock, or injury to
persons, observe the following:
A. Maintenance is to be performed only by qualified
personnel who are familiar with local codes and
regulations and are experienced with this type of
product.
B. Before servicing or cleaning the product switch power
off at service panel and lock service panel to prevent
power from being switched “ON” accidentally.
TROUBLESHOOTING
PROBLEM
CAUSE
SOLUTION
NO AIR BLOWING
OUT OF DISCHARGE
NOZZLE
- No power being supplied to the unit
from the electrical power source - Confirm power source / check if in on position
- Circuit breaker is tripped
- Reset circuit breaker
- Blown fuses on power supply
- Replace fuses
- Motor overload is open or tripped
- Allow the motor to cool down; motor has auto reset
internal overload; if unit is panel equipped, press
reset button on overload inside panel, or replace
motor overload if overload remains tripped
- Motor contactor / relay defective
(if applicable)
- Check voltage to coil; check contacts to see if they
are pulling in
- Failed switch
- Replace or repair limit switch
MOTOR IS RUNNING
BUT FANS ARE NOT
SPINNING
- Loose or broken coupling (belt drive) - Replace or tighten coupling
- Loose set screws on wheel hubs
- Tighten set screws on motor shaft flats
- Fan spinning inside fan housing
- Tighten fan on shaft or replace fan
- Broken fan hub
- Replace fan wheels
ELECTRICAL
CONTROLS NOT
WORKING WHEN
DOOR IS OPEN
- Switch is in off position - Turn unit's switch to the on position
- Door limit switch is not operating
- Repair or replace door limit switch
UNIT WILL NOT TURN
OFF
- Door limit switch is permanently
closed or energized
- Position the door switch in a manner that turns off the
unit when the door closes and turns on the unit when
the door opens. Only light pressure required.
LOW AIR FLOW
- Discharge air vanes out of
adjustment
- Adjust vanes to proper position
(Refer to Start-Up Section in this manual)
- Obstruction on intake or discharge
- Remove obstruction or move air curtain
-
Power leads out of polarity
- Switch power leads to correct polarity
(3 phase models only)
- Blower motor rotating below normal
speed
- Apply proper voltage per unit requirement
(see unit label) / Adjust adjustable motor speed knob
(if applicable)
- Fan rubbing against housing
- Free fan from housing
- Blower wheels clogged with dirt
- Clean and remove dirt from blower wheels
EXCESSIVE AIR
VELOCITY AT DOOR
OPENING
- Nozzle out of adjustment and not
angled far out enough (BD only) - Adjust nozzle angle to outside
- Air temperature too cold
- Add auxiliary heat to overcome wind chill
- Air stream pushing air outside of the
building
- Adjust discharge angle back into building
AIR NOT HITTING
THE FLOOR
- Low air velocity
- Adjust vanes to proper position or check installation
height (Refer to Start-Up Section in this manual)
- Obstruction in the direction of air flow
- Remove obstruction or move air curtain
(Move out 3/8" for every 1" up from the door)
- Negative building pressure
- Provide a make-up air system to relieve negative
building pressure
UNEVEN AIR
- Shaft rotating inside fan
- Replace fan or tighten fan on shaft
- One motor not functioning
- Replace or repair motor
EXCESSIVE NOISE
AND OR VIBRATION
- Loose or broken coupling (belt drive) - Replace or tighten coupling
- Loose set screws on wheel hubs
- Tighten set screws on motor shaft flats
- Fan spinning inside fan housing
- Tighten fan on shaft or replace fan
- Broken fan hub
- Replace fan wheels
- Bearing end caps worn
- Replace Bearing end caps
- Damaged blower wheel
- Replace Blower Wheel
- Bearing end caps worn
- Pillow block bearings make noise
- Replace Bearing end caps
- Grease Bearing
- Balancing clips missing
- Replace Blower Wheel
TROUBLESHOOTING MOTOR
To determine if the motor is in good operating condition, compare measured motor resistance at the motor
terminals to the values shown below.
HIGH SPEED (1750) MEDIUM SPEED (1650) LOW SPEED (1450)
Applicable
Air Curtain
Series
Mars Part # Manufacturer Part # Brand Motor Rating HP Voltage Phase
Capacitor
Rating
Motor
Frame
Black Motor Wire & White
Motor Wire
- -
03-001 7190-1682 Fasco Nema 1 1/6 115 15 µF 370Vac -11.5 - -
03-002 7190-1903 Fasco Nema 1 1/6 115 15 µF 370Vac -8.4 - -
03-003 7190-1825 Fasco Nema 1 1/6 230 14 µF 440Vac -64 - -
03-004 7190-1904 Fasco Nema 1 1/6 230 16 µF 370Vac -44.6 - -
03-124 7190-3307 Fasco Nema 1 1/6 115/230 110 µF 370Vac -8.2/36 - -
03-124 K33NVDHJ-1446 US Nema 1 1/6 115/230 110 µF 370Vac -8.1/32 - -
Applicable
Air Curtain
Series
Mars Part # Manufacturer Part # Brand Motor Rating HP Voltage Phase
Capacitor
Rating
Motor
Frame
White Motor Wire (T1)
&
Black Motor Wire (T3)
White Motor Wire (T1)
&
Black Motor Wire (T5)
White Motor Wire (T1)
&
Black Motor Wire (T2)
03-010 34G928X169 Baldor Washdown (IP54) 1/2 115 1 - 56Z 1.2 - -
03-010 34G928X169 Baldor Washdown (IP54) 1/2 208/230 1 - 56Z 4.6 - -
03-005 7124-1175 Genteq Nema 1 1/2 115 17.5 µF 370Vac 48 2.6 3.8 5.2
03-006 7124-1560 Genteq Nema 1 1/2 208/230 110 µF 370Vac 48 9.9 15.9 22.5
03-007 48S17T439 Marathon Nema 1 1/2 277 1 - 48Z 7.7 - -
03-005 K055PWM1736C13H Nidec Nema 1 1/2 115 110 µF 370Vac 48Y 2.1 3.7 5.2
03-005 K055PWM1736C13H US Nema 1 1/2 115 110 µF 370Vac 48Y 5.3 3.7 5.4
03-006 K55HXPNA-2845 US Nema 1 1/2 208/230 110 µF 370Vac 48Y 8.7 18.2 24.2
Applicable
Air Curtain
Series
Mars Part # Manufacturer Part # Brand Motor Rating HP Voltage Phase
Capacitor
Rating
Motor
Frame
White Motor Wire (T1)
&
Black Motor Wire (T2)
White Motor Wire (T1)
&
Black Motor Wire (T3)
-
03-021 35T276R025G1 Baldor Washdown (IP54) 1115 1 - 56Z 0.7 - -
03-015-Baldor 35M316S174 Baldor Nema 1 1115 1 - 56Z 0.6 - -
03-015-Baldor 35M316S174 Baldor Nema 1 1208/230 1 - 56Z 2.2 - -
03-021 35T276R025G1 Baldor Washdown (IP54) 1208/230 1 - 56Z 2.8 - -
03-014 7124-0985 Genteq Nema 1 1115 150 µF 370Vac 56 1.6 2.4 -
03-015 7124-1096 Genteq Nema 1 1208/230 130 µF 370Vac 56 6.5 9.2 -
03-015 -Nidec Nema 1 1208/230 120 µF 370Vac 48Y 4.3 6.5 -
03-014 K55BWJZB-2362 US Nema 1 1115 120 µF 370Vac 48Y 12.1 -
03-015 -US Nema 1 1208/230 120 µF 370Vac 48Y 3.2 6.3 -
Black Motor Wire (L1)
&
Red Motor Wire (L2)
Black Motor Wire (L1)
&
White Motor Wire (L3)
Red Motor Wire (L2)
&
White Motor Wire (L3)
03-008 P55YYDHB-1527 US Nema 1 1/2 208-230 316.1 16.1 16.1
03-008 P55YYDHB-1527 US Nema 1 1/2 460 363.6 63.6 63.6
03-009 48T17T135 Marathon Nema 1 1/2 575 3136 136 136
03-017 56T17T5541 Marathon Nema 1 1208-230 34.3 4.3 4.3
03-017 56T17T5541 Marathon Nema 1 1460 316.5 16.5 16.5
03-018 56T17T5544 Marathon Nema 1 1575 326.6 26.6 26.6
03-022 35N127S902 Baldor Washdown (IP54) 1208-230 35.1 5.1 5.1
03-022 35N127S902 Baldor Washdown (IP54) 1460 319.8 19.8 19.8
03-026 165716 Century Nema 1 3208-230 31.5 1.5 1.5
03-026 165716 Century Nema 1 3460 35.7 5.7 5.7
03-026 P63TYFMJ-1687 US Nema 1 3208-230 31.2 1.2 1.2
03-026 P63TYFMJ-1687 US Nema 1 3460 34.4 4.4 4.4
03-028 35E92Y26 Baldor Nema 1 3575 39.2 9.2 9.2
03-110 36H110-2211G1 Baldor Nema 1 1,2,3 208-230 33.5 3.5 3.5
03-110 36H110-2211G1 Baldor Nema 1 1,2,3 460 313.5 13.5 13.5
03-055 37F932W828G1 Baldor Nema 1 5230 30.7 0.7 0.7
03-055 37F932W828G1 Baldor Nema 1 5460 32.4 2.4 2.4
03-046 37F909X889G1 Baldor Nema 1 7230 30.6 0.6 0.6
03-046 37F909X889G1 Baldor Nema 1 7460 31.6 1.6 1.6
03-033 U639A - 215TTFC6027 Marathon Nema 1 10 208-230 30.4 0.4 0.4
03-033 U639A - 215TTFC6027 Marathon Nema 1 10 460 31.2 1.2 1.2
03-074 GT1128A 170118.60 Marathon Nema 1 25 575 30.5 0.5 0.5
BD
HV2, NH2,
PH12
EP2
WMI
WMH
STD2, N2,
PH10, QP10
Applicable
Air Curtain
Series
Mars Part #
HP
Voltage
Brand
Motor Rating
Manufacturer Part #
LEAD WIRE OHM READINGS
MOTOR WIRES OR TERMINAL (T) OHM READINGS
Single Phase Motors
MARS MOTOR RESISTANCE READINGS
Three Phase Motors
LPV2, LPN2
STD2, N2,
PH10, QP10
HV2, NH2,
PH12
Motor Frame
48
48
48
56Z
Phase
56Z
56Z
56Z
56Z
U56Y
U56Y
56HZ
56HZ
56Z
184Z
215T
215T
284TS
184Z
215YZ
215YZ
215YZ
215YZ
WARRANTY
Mars’ warranty coverage, period, extent, and
limitations apply to the product only. It does not apply
to labor. Mars warrants that the Mars product 1) is
free from defects in materials and workmanship, and
2) conforms to Mars’ published specifications. The
warranty period for Mars products (except for heated
models, custom models, or WMI, WMH and BD
models) is a five (5) year period commencing on the
date of shipment. The warranty for heated models is
an eighteen (18) month period, the warranty for
custom models and for accessories is a twelve (12)
month period, and the warranty for WMI, WMH, and
BD models is a twelve (12) month period. The date
on the customer’s invoice is the date of shipment
unless Mars or your reseller informs you and Mars
otherwise. Mars will provide free replacement of any
part that fails as a result of a defect in material or
manufacturer’s workmanship. Changes in
operational specification parameters that differ from
those provided on the original purchase order are not
covered. Mars products are inspected and tested
before packaging and are shipped in working
condition. The warranty for Mars products only
covers free-of-charge replacement of failed parts.
The warranty does not cover labor and transportation
expenses that may be required to deliver and to
install replacement parts. Because in many
instances it is impossible to determine the cause of
failure, the customer may be responsible for
transportation charges associated with replacement
of failed part. Mars does not warrant uninterrupted or
error-free operation of Mars product. Under no
circumstance is Mars liable for any of the following:
1) third-party claims against you for damages, 2)
special, incidental, or indirect damages, or 3) any
economic consequential damages (including lost
profits and savings), regardless of whether Mars, its
suppliers, or its resellers were informed of the
possibility of damages. The warranty does not cover
repair or exchange of Mars products resulting from
misuse, accidental damage, modification, unsuitable
physical or operating environment, improper
maintenance or installation by customer, or failure
caused by a product for which Mars is not
responsible. The warranty does not cover damages
caused by mishandling during transportation. The
warranty is voided by removal or alteration of Mars
product or parts identification labels, and by improper
installation of product and resulting non-compliance
with federal, state, and local codes and regulations.
Additionally, Mars reserves the right to void the
warranty for non-payment of invoice.
CONTACT FACTORY FOR COMPLETE PARTS
LIST FOR ALL MODELS.
KEEP THIS MANUAL FOR YOUR RECORDS.
Model Number:______________________________
Serial Number: ______________________________
Date Purchased: ____________________________
Dealer Purchased From: ______________________
14716 S. Broadway St., Gardena, CA 90248
(310) 532–1555 ● (800) 421-1266
Fax: (310) 324-3030
Please go to our website at www.marsair.com for a
downloadable version of this document.
Mars Low Profile Series 2-CSI-Spec Revised 4/26/2023
MARS AIR SYSTEMS, LLC
23 34 33 – 1
SECTION 23 34 33
AIR CURTAINS
Important Note: This specification contains hidden text appearing in red. To show or remove hidden text
in MSWord, click the “File” tab or “Office” icon on the top-left corner, select “Options,” select
“Display,” and check or uncheck the box marked “Hidden Text.”
PART 1 GENERAL
1.1 SECTION INCLUDES
A. Air curtains for pedestrian entrances.
B. Air curtains for countertop and drive through windows.
1.2 RELATED SECTIONS
A. Section 05 50 00 – Metal Fabrications: Concealed steel support members.
B. Section 06 10 00 – Rough Carpentry.
C. Section 05 41 00 – Structural Metal Studs.
D. Section 07 62 00 – Sheet metal flashing.
E. Section 07 92 00 – Joint Sealants.
F. Section 08 10 00 – Metal Doors and Frames.
G. Section 08 33 00 – Overhead Coiling Doors.
H. Section 08 42 00 – Entrance Doors.
I. Section 22 10 00 – Plumbing Piping:
J. Section 23 21 00 – Hydronic Piping: Hot water heating piping to units.
K. Section 23 22 13- Steam and Condensate Piping: Steam heating piping to units.
Mars Low Profile Series 2-CSI-Spec Revised 4/26/2023
MARS AIR SYSTEMS, LLC
23 34 33 – 2
L. Section 26 05 00 – Equipment Wiring: Connections to building power distribution.
1.3 REFERENCES
A. ASTM A240 / A240M -10 – Standard Specification for Chromium and Chromium and
Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for
General Applications.
B. ASTM A591 / A591M -98 – Standard Specification for Steel Sheet, Electrolytic Zinc-
Coated, for Light Coating Weight (Mass) Application (Withdrawn in 2005, replaced by
A879/A879M).
C. ASTM A879 / A879M -06 – Standard Specification for Steel Sheet, Zinc Coated by the
Electrolytic Process for Application Requiring Designation of the Coating Mass on Each
Surface.
D. ASTM A653 / A653M -09a – Standard Specification for Steel Sheet, Zinc Coated
(Galvanized) or Zinc-Iron Alloy-Coated (Galvannealed) by the Hot-Dip Process.
E. AHRI 410-2001 – Standard for Forced-Circulation Air-cooling and Air-Heating Coils.
F. NSF/ANSI 37 – Air Curtains for entranceways in food and food service establishments –
ETL Sanitation.
G. CRN – Canadian Registration Number Coil.
H. ANSI Z223-NFPA 54 – National Fuel Gas Code/
I. UL 507 – UL Standard for Safety Electric Fans – Intertek Testing Services Listed for US
and Canada
J. UL 2021 – UL Standard for Fixed and Location-Dedicated Electric Room Heaters –
Listed for US and Canada.
K. NEC – National Electric Code.
1.4 SUBMITTALS
A. Submit under provisions of Section 01 33 00.
B. Product Data: Manufacturer's data sheets on each product to be used, including:
1. Preparation instructions and recommendations.
2. Storage and handling requirements and recommendations.
3. Installation methods.
C. Shop Drawings: Include plans, elevations, sections, and details, indicating dimensions,
tolerances, materials, fasteners, hardware, finish, piping, electrical wiring diagrams,
options, and accessories.
Mars Low Profile Series 2-CSI-Spec Revised 4/26/2023
MARS AIR SYSTEMS, LLC
23 34 33 – 3
D. LEED Submittals: Provide documentation of how the requirements of Credit will be met:
1. List of proposed materials with recycled content. Indicate post-consumer
recycled content and pre-consumer recycled content for each product having
recycled content.
2. Product data and certification letter indicating percentages by weight of post-
consumer and pre-consumer recycled content for products having recycled
content.
E. Selection Samples: For each finish product specified, two complete sets of color chips
representing manufacturer's full range of available colors and patterns.
F. Verification Samples: For each finish product specified, two samples, minimum size 6.25
inches (160 mm) square, representing actual product, color, and patterns.
G. Manufacturer's Certificates: Certify products meet or exceed specified requirements.
H. Operation and Maintenance Manual: Submit manufacturer's operation and maintenance
manual, including operation, maintenance, adjustment, and cleaning instructions,
troubleshooting guide, parts list, and electrical wiring diagrams.
1.5 QUALITY ASSURANCE
A. Manufacturer Qualifications: Minimum ten years documented experience producing the
products specified in this Section
B. Installer Qualifications: Minimum five years documented experience installing products
specified in this Section
1.6 DELIVERY, STORAGE, AND HANDLING
A. Store products in manufacturer's unopened packaging until ready for installation.
B. Store in a dry, heated storage area until installation of products.
C. Protect materials and finish from damage during handling and installation.
1.7 SEQUENCING
A. Ensure that locating templates and other information required for installation of products
of this section are furnished to affected trades in time to prevent interruption of
construction progress.
B. Coordinate the installation of wiring and control switches for air curtains with the
openings and the hardware provided for such openings.
C. Install after doors, walls, ceilings, and other adjacent surfaces are finished and painted.
Mars Low Profile Series 2-CSI-Spec Revised 4/26/2023
MARS AIR SYSTEMS, LLC
23 34 33 – 4
1.8 WARRANTY
A. Standard five-year limited parts warranty for unheated units against defects in
workmanship and material.
B. Standard 18-month limited parts warranty for heated units against defects in
workmanship and materials.
PART 2 PRODUCTS
2.1 MANUFACTURER
A. Acceptable Manufacturer: Mars Air Systems, LLC; 14716 South Broadway St., Gardena,
CA 90248. Tel: (310) 532-1555 or (800) 421-1266. Fax: (310) 324-3030. Email:
info@marsair.com. Web: www.marsair.com.
B. Delete one of the following two paragraphs: coordinate with requirements of Division 1
section on product options and substitutions.
C. Requests for substitutions will be considered in accordance with provisions of Section 01
33 00.
2.2 AIR CURTAIN ASSEMBLIES
A. Motor Fan Assembly: Design for easy removal, assembly, repair, and maintenance.
1. Motor: Totally enclosed air over (TEAO) cooled motor with sealed lifetime pre-
lubricated ball bearings, motor starter and thermal overload protection.
a. LPN2 Units: Wired for single speed operation.
b. LPV2 Units: Wired for variable speed operation.
c. Electrical Characteristics: 115V AC, single phase; 2.4 Amp (units up to
48 inches wide) or 2.6 Amp (units 60 to 72 inches wide) full load per
motor/fan.
d. Electrical Characteristics: 208/230V AC, single phase; 1.2 Amp (units up
to 48 inches wide) 1.4 Amp (units 60 to 70 inches wide) full load per
motor/fan.
e. Meets NEC. ETL Listed to conform to UL 507 (US) and CSA22.2
(Canada) Standards.
2. Fans: Tangential type, double width, directly driven by an electric motor.
a. Provide resilient isolation dampening mountings between motor frame
and housing.
b. Factory balanced blower wheel assembly statically and dynamically.
B. Housing: Self-contained one-piece type for units up to 72 inches in length with sufficient
strength for mounting from pre-punched mounting holes at both ends to ceiling without
intermediate support. Units longer than 72” are two units tandem mounted next to each
other.
1. Size:
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