Enviro 170S5FG User Manual
MQL • TABLE OF CONTENTS
2
Product Overview .....................................................................................................................................3
Features and Benefits...............................................................................................................................6
Application Considerations ......................................................................................................................5
Unit Configuration ...................................................................................................................................6
Electric Heat .............................................................................................................................................7
Coil and Filter Data ..................................................................................................................................9
Static Pressure Data ................................................................................................................................10
Weight and Electrical Data......................................................................................................................12
Fan Notes ................................................................................................................................................13
Fan Performance Data.............................................................................................................................14
Guide Specifications................................................................................................................................25
Metric Conversion Chart..........................................................................................................................28
Features and Options ..............................................................................................................................30
GENERAL NOTES
• Some drawings are not shown in this catalog. Please refer to www.enviro-tec.com for complete
submittal drawings for your project.
• All data herein is subject to change without notice. Refer to www.enviro-tec.com for current catalog
and submittal drawings.
• Drawings not for installation purposes; refer to IOM manual at www.enviro-tec.com.
• ETL Report Number 3017723-001.
• MEA Number MEA 107-02-E applies to all units with any combination of chilled water or R-22 direct
expansion coils and either hot water coils, steam coils, or electric heat.
ENVIRO-TEC
PRODUCT OVERVIEW • MQL
3
The Perfect Solution for Schools, Hospitals, and Commercial Buildings.
The flexibility of the Model MQL Blower Coil allows you to design the unit to meet the specific project
needs. The MQL design allows you to configure draw thru applications in horizontal, vertical, and footprint-saving arrangements. From basic air handling to the sophisticated isolation room systems required
to meet challenging indoor air quality (IAQ), controls, and acoustic (sound sensitive) projects – the Model
MQL Blower Coil is your solution!
Standard Features
• Modular construction allows for footprint saving arrangements including stacking modules in two-high
configuration.
• IAQ galvanized drain pans are double sloped to prevent standing water and minimize microbial growth.
Stainless steel drain pans are available.
• Removable access panels for improved accessibility, cleanability, and serviceability. Hinged access doors
with quick action latches are available.
• Single point power connection – even with draw thru or blow thru electric heat – simplifies installa-
tion. Fan motors are factory mounted and wired to the junction box.
• Available in nine sizes, from 600 to 10,000 CFM.
• Internal spring isolation standard on all unit sizes 02 - 17.
• Single wall and double wall-galvanized construction are available. Double wall construction enhances
indoor air quality, protects insulation, and provides the ability to clean the inside of the unit.
Optional Features
• Factory-packaged blower coils are available with starters or variable frequency drives, factory mounted
and wired. Simply connect power, piping, and ductwork, and the units are ready for operation. An
excellent way to minimize installation time, coordination and costs, while increasing reliability.
• Quiet, flexible, acoustical discharge plenums may be used for sound sensitive projects.
• Exhaust / Return Fan with Economizer Sections for use with IAQ applications (“free” heating and cool-
ing – cost savings for space conditioning).
• Customized Options including:
- Direct drive plug fans
- High efficiency filters
- Double wall perforated lining
- External face and bypass dampers
- Inspection windows
ENVIRO-TEC
MQL • FEATURES AND BENEFITS
4
Designed For Maximum
Flexibility
The ENVIRO-TEC
®
Model MQL
Blower Coil Unit is designed to
maximize flexibility of selection
and installation.
The unit is also designed to exceed
the stringent quality standards of
the institutional market, while
remaining cost competitive in the
light commercial segment of the
market.
ENVIRO-TEC
®
Model MQL sets the
new standard for quality, flexibility, and competitive pricing.
For the Building Designer:
OPTIONAL COMPONENTS
MEAN FLEXIBILITY
The extensive variety of standard
options available on the MQL is
where you find the versatility to
fit any HVAC system designer’s
needs.
Options include: Mixing boxes
with standard low leak dampers,
High efficiency filter sections for
2" prefilter and 4" final filter, blow
thru electric heat with single point
power connection. All electric
heat units are listed with ETL as
an assembly and carry the cETL
label.
High Efficiency motors, starters,
disconnects and fusing mean easier coordination between mechanical and electrical trades.
Coil options allow for 4 or 6 row
cooling coils. Water coils have
optional circuiting that can be
used to reduce Water Pressure
Drop, which may also allow for
pipe size reductions and lower
material cost. Hot Water or
Standard Steam coils may be
placed in the Preheat or Reheat
position.
All Model MQL blower coils have
the option of foil faced insulation.
For the Contractor:
L
OWER INSTALLED COST
Model MQL blower coils are
shipped completely assembled,
reducing field installation time
and labor. All units are thoroughly inspected and tested prior
to shipment, eliminating potential
problems at startup. Motor wiring
is brought to a junction box on the
outside of the unit casing, reducing electrical hook-up time.
A wide variety of fan discharge
configurations allow for increased
flexibility and easier installation on
the jobsite, resulting in cost reductions by eliminating expensive
elbows, etc.
For the Owner:
QU
ALITY PRODUCT
Model MQL blower coil units are
built from G60 minimum spangled
galvanized steel with a chromate
coating. This metal surpasses the
ASTM 125 hour salt spray test for
corrosion and rust. Standard insulation is 1 inch fiberglass insulation
which is glued and pin spotted for
maximum positive adhesion.
Insulation complies with UL 181
and NFPA 90A.
All units, with or without Electric
Heat, are ETL listed and labeled.
All wiring is in compliance with
NEC, assuring safety and quality
for the owner.
ENVIRO-TEC
APPLICATION CONSIDERATIONS • MQL
5
Application Considerations
Model MQL blower coil units offer
a wide range of application flexibility, while maintaining a simple,
easy to install unit design. These
units are intended to provide
comfort cooling and heating
within a small footprint. They
may be applied in many types of
building structures including
schools, office buildings, hospitals, condominiums, assisted living facilities, apartments or stores.
Applications can be constant or
variable volume.
There are many applications in
which the MQL product can be
utilized. Some examples include:
Constant volume applications
• Two-pipe hydronic system for
cooling and/or heating
• Two-pipe hydronic cooling
system with electric heat
• Four-pipe system with dedicated heating and cooling
coils
• Direct Expansion (DX) split
systems with hydronic heat
• Direct Expansion (DX) split
systems with electric heat
Variable volume applications
• Two-pipe hydronic system for
cooling and/or heating.
• Two-pipe hydronic cooling
system with electric heat.
• Four-pipe system with dedicated heating and cooling
coils.
Acoustics
Control of noise within both occupied and unoccupied spaces has
become increasingly important
to designers and building owners/occupants. Proper consideration must be given to placement
of indoor air conditioning units,
particularly in the occupied space.
Inherent flexibility of the fan and
coil combination in the vertical
configuration allows application
in sound-sensitive areas. In such
instances, a fan running at low
speed with a high capacity coil
normally yields satisfactory
results. It also may be desirable to
select a larger nominal capacity
unit and operate it at a less than
nominal airflow for further
acoustic benefit.
Three phase motors are recommended for sound-sensitive applications to avoid potential single
phase motor hum. Unit operation
in the stall region of the fan curve
is not recommended since it may
cause unsatisfactory noise levels
and excessive unit vibration.
Installation
These floor mounted or ceiling
hung units can be installed on a
base rail or hanger rods at the corner points. All units have internally
isolated fan decks; therefore, flex
connections are not required,
which will reduce installation
costs. One of the most important
and basic IAQ issues is condensate
management. The first step to
ensure trouble-free operation is
proper installation. It is very
important that the unit be
mounted high enough so that the
condensate drain from the unit
may be properly trapped. Please
refer to the MQL IOM Manual at
www.enviro-tec.com for specifics
on this issue. As with all HVAC systems, these units should be
installed according to all applicable ASHRAE standards, SMACNA
and local code requirements.
Operating Limitations
Units must not be operated above
maximum fan speed or unit airflow as listed in the Fan
Performance section of this catalog. Unit operation at greater
than maximum fan speed could
drastically reduce bearing life and
may result in a catastrophic failure. Operating at greater than the
maximum allowable airflow in
the cooling mode may result in
unsatisfactory operation due to
moisture carry over from the coil.
In addition, it is often not economical to operate a unit at its
maximum fan speed due to the
greater motor power requirements.
Units with electric heat should not
be operated with leaving air temperature greater than 104°F, to
prevent excessive leaving air temperatures and electric heat limit
trips. A hydronic (or steam) coil
and electric heat should not be
operated simultaneously to prevent excessive leaving air temperatures and limit trips. Electric
heat units are equipped with a
lockout switch that disables the
electric heater if the temperature
of the hydronic (or steam) coil is
greater than 104°F (40°C).
Water coils must not be operated
above a fluid velocity of 8 ft./sec.
to reduce the possibility of velocity induced erosion and flow
noise. Water coils must not be
operated below a fluid velocity of
1 ft./sec. to prevent degraded coil
performance caused by laminar
flow. These high or low fluid flow
rates may not be included in the
ARI coil certification.
ENVIRO-TEC
MQL • UNIT CONFIGURATION
6
Position: 1 2 3 456 7 8 9 10
MQL - Module Size Dim. 02 03 04 06 08 10 12 14 17
H - in (mm) 17-3/8 (441) 17-3/8 (441) 17-3/8 (441) 26-3/8 (670) 26-3/8 (670) 26-3/8 (670) 41-3/16 (1046) 41-3/16 (1046) 41-3/16 (1046)
W - in (mm) 28 (711) 34 (864) 42 (1069) 42 (1069) 46 (1168) 56 (1422) 64 (1626) 68 (1727) 80 (2032)
L - in (mm) 5-1/4 (133) 5-1/4 (133) 5-1/4 (133) 5-1/4 (133) 5-1/4 (133) 5-1/4 (133) 5-1/4 (133) 5-1/4 (133) 5-1/4 (133)
SAM Small Access H - in (mm) 22 (559) 22 (559) 22 (559) 30 (762) 34 (864) 34 (864) 44 (1118) 44 (1118) 44 (1118)
SCM Small Coil W - in (mm) 30 (762) 36 (914) 44 (1118) 44 (1118) 48 (1219) 58 (1473) 66 (1676) 70 (1778) 82 (2083)
SFM Small Flat Filters (2" and/or 4" Cartridge) L - in (mm) 15 (381) 15 (381) 15 (381) 15 (381) 15 (381) 15 (381) 15 (381) 15 (381) 15 (381)
MAM Medium Access H - in (mm) 22 (559) 22 (559) 22 (559) 30 (762) 34 (864) 34 (864) 44 (1118) 44 (1118) 44 (1118)
MCM Medium Coil W - in (mm) 30 (762) 36 (914) 44 (1118) 44 (1118) 48 (1219) 58 (1473) 66 (1676) 70 (1778) 82 (2083)
MFM
Med. INTELLITRAC
®
Mix. Box w/Flat Filters (2")
L - in (mm) 30 (762) 30 (762) 30 (762) 30 (762) 30 (762) 30 (762) 30 (762) 30 (762) 30 (762)
MIM
Med. INTELLITRAC
®
Inlet Plenum w/Flat Filters (2")
MMM Medium Mixing Box with Flat Filters (2")
MRM Medium Inlet Plenum with Flat Filters (2")
MVM Medium V-Bank Filters (2")
HFM Horizontal FC Fan H - in (mm) 22 (559) 22 (559) 22 (559) 30 (762) 34 (864) 34 (864) 44 (1118) 44 (1118) 44 (1118)
HPM Horizontal Plug Fan W - in (mm) 30 (762) 36 (914) 44 (1118) 44 (1118) 48 (1219) 58 (1473) 66 (1676) 70 (1778) 82 (2083)
RFM Return FC Fan L - in (mm) 32 (813) 32 (813) 32 (813) 36 (914) 36 (914) 36 (914) 40 (1016) 40 (1016) 40 (1016)
RPM Re turn Plug Fa n
VCM Vertical Coil
VFM Vertica l FC Fa n
MBM Medium Face & Bypas s H - in (mm) 30 (762) 30 (762) 30 (762) 40 (1016) 46 (1168) 46 (1168) 56 (1422) 58 (1473) 58 (1473)
MTM Medium Tall Coil W - in (mm) 30 (762) 36 (914) 44 (1118) 44 (1118) 48 (1219) 58 (1473) 66 (1676) 70 (1778) 82 (2083)
STM Small Tall Coil L - in (mm) 30 (762) 30 (762) 30 (762) 30 (762) 30 (762) 30 (762) 30 (762) 30 (762) 30 (762)
H - in (mm) 22 (559) 22 (559) 22 (559) 30 (762) 34 (864) 34 (864) 44 (1118) 44 (1118) 44 (1118)
W - in (mm) 30 (762) 36 (914) 44 (1118) 44 (1118) 48 (1219) 58 (1473) 66 (1676) 70 (1778) 82 (2083)
L - in (mm) 30 (762) 30 (762) 30 (762) 30 (762) 30 (762) 30 (762) 30 (762) 30 (762) 30 (762)
LAM Large Access H - in (mm) 22 (559) 22 (559) 22 (559) 30 (762) 34 (864) 34 (864) 44 (1118) 44 (1118) 44 (1118)
LFM
Lg. INTELLITRAC
®
Mix. Box w/V-Bank Filters (2")
W - in (mm) 30 (762) 36 (914) 44 (1118) 44 (1118) 48 (1219) 58 (1473) 66 (1676) 70 (1778) 58 (1473)
LIM
Lg. INTELLITRAC
®
Inlet Plenum w/V-Bank Filters (2")
L - in (mm) 42 (1067) 42 (1067) 42 (1067) 42 (1067) 42 (1067) 42 (1067) 42 (1067) 42 (1067) 42 (1067)
LMM Large Mixing Box with V-Bank Filters (2")
LRM Large Inlet Plenum with V-Bank Filters (2")
LPM Large Discharge Plenum
FCM FC Fan and Coil Combination (Horizontal Only) H - in (mm) 22 (559) 22 (559) 22 (559) 30 (762) 34 (864) 34 (864) 44 (1118) 44 (1118) 44 (1118)
HEM Horizontal Economizer W - in (mm) 30 (762) 36 (914) 44 (1118) 44 (1118) 48 (1219) 58 (1473) 66 (1676) 70 (1778) 82 (2083)
H - in (mm) 13-1/2 (343) 13-1/2 (343) 13-1/2 (343) 18 (457) 18 (457) 18 (457) 21 (533) 21 (533) 21 (533)
W - in (mm) 11-1/2 (292) 11-1/2 (292) 11-1/2 (292) 17 (432) 17 (432) 17 (432) 24 (610) 24 (610) 24 (610)
L - in (mm) 22 (559) 22 (559) 22 (559) 22 (559) 22 (559) 22 (559) 22 (559) 22 (559) 22 (559)
Electric Heat Draw Thru
Electric Heat Blow Thru
External Flat Filters (2")
UNIT CONFIGURATION (IN DIRECTION OF AIRFLOW)
EHD
EHB
EFM
Uppe r De ck - B
Low e r De ck - A
Notes:
1. All dimensions are +
1/4" (6mm). Metric
values are soft
conversions.
2. Section images are for
identification of unit
configuration only.
See individual section
submittal drawings at
www.enviro-tec.com
for details.
3. Certain configuration
rules apply; see cata-
log and selection
program for details.
4. All data subject to
change without
notice.
Fig. 1
Fig. 2
Fig. 2
Fig. 2
Fig. 2
Fig. 3
Fig. 4
Fig. 4
Fig. 5
ENVIRO-TEC
ELECTRIC HEAT • MQL
7
STANDARD FEATURES
• G60 galvanized steel casing
• Flanged construction for direct unit
mounting, in blow thru configuration
• Listed for zero clearance installation
• Meets National Electrical Code requirements
• Ni-Chrome wire in ceramic insulators
• Stainless steel element terminals
and hardware
• Element support brackets on maximum
3 1/2" centers
• Solid cover with continuous full height hinge
• Overtemperature protection
• All internal wiring rated for 105°C minimum
• Airflow switch
• Incoming line power distribution block
• ETL Listed in compliance with UL/ANSI Standard 1995
• Single point power connection
• Heater factory mounted to unit with ETL listing as an
assembly
OPTIONAL FEATURES
• Main incoming power disconnect (non-fused) (fused)
• Fusing (main) (per stage)
• Magnetic contactors wired
for disconnecting operation
• Solid state relay with 4-20 mA,
thermistor 0-135 Ohm,
0-16 VDC, or 6-9 VDC control
• Fan control package with heater interlock
contacts (required for single point power connection)
• De-rated elements (for longer life)
Blow Thru
(installed on unit discharge)
Side View Front View
Airflow
Draw Thru
(installed upstream of fan)
Side View
Airflow
VOLTAGE
115/1
208/1
230/1
277/1
208/3
230/3
460/3
575/3
4.81
4.35
3.61
HEATER AMP CALCULATION
AMPs per kW
8.70
1.00
2.78
2.51
1.26
1.Refer to MCA/MOP Calculator at www.enviro-tec.com for MCA and/or MOP calculations.
2. Non-Fused Door Interlock Disconnect Switch shall be sized according to MCA.
3. Fused Door Interlock Disconnect Switch and Main Fusing shall be sized according to MOP.
4. Heaters above 480v must utilize one time secondary limits only.
Plan View
ENVIRO-TEC
MQL • ELECTRIC HEAT
8
Notes:
1. Blow thru heaters can have a maximum of two stages.
2. VFD controllers cannot be supplied with blow thru heaters.
3. Specific kW ratings are available within the ranges shown. Refer to selection program.
4. Heaters above 480v must utilize one time secondary limits only.
Notes:
1. Draw thru heaters can have a maximum of four stages.
2. All heaters that have an AMP draw greater than 48 AMPs will have a minimum of two stages.
3. Specific kW ratings are available within the ranges shown. Refer to selection program.
4. Heaters above 480v must utilize one time secondary limits only.
Min Ma x Mi n Max Min Ma x Min Max Min Ma x Mi n Max Min Ma x Mi n Max Min Ma x
kW353545
AMPs 26.1 43.5 26.1 43.5 34.8 43.5
kW3103104106.016716920
AMPs 14.4 48.1 14.4 48.1 19.2 48.1 28.8 76.9 33.7 76.9 43.3 96.2
kW3113114116.018718922
AMPs 13.0 47.8 13.0 47.8 17.4 47.8 26.1 78.3 30.4 78.3 39.1 95.7
kW3133134136.022722926
AMPs 10.8 46.9 10.8 46.9 14.4 46.9 21.7 79.4 25.3 79.4 32.5 93.9
kW3133204264.026728934124614461646
AMPs 8.3 36.1 8.3 55.5 11.1 72.2 11.1 72.2 19.4 77.7 25.0 94.4 33.3 127.7 38.9 127.7 44.4 127.7
kW3133204264.026732934124914491649
AMPs 7.5 32.6 7.5 50.2 10.0 65.3 10.0 65.3 17.6 80.3 22.6 85.3 30.1 123.0 35.1 123.0 40.2 123.0
kW3133204264.026752964127614881696
AMPs 3.8 16.3 3.8 25.1 5.0 32.6 5.0 32.6 8.8 65.3 11.3 80.3 15.1 95.4 17.6 110.4 20.1 120.5
kW3133204264.026752964127614881696
AMPs 3.0 13.1 3.0 20.1 4.0 26.1 4.0 26.1 7.0 52.2 9.0 64.3 12.0 76.3 14.1 88.4 16.1 96.4
UNIT
VOLTAGE
AND PHA SE
DRAW- T HRU EL ECT RI C HEAT
Unit Size
020304060810121417
Single Phase
115
230
208
277
Three Phase
208
230
460
575
Min Ma x Mi n Max Min Ma x Min Max Min Ma x Mi n Max Min Ma x Mi n Max Min Ma x
kW353545
AMPs 26.1 43.5 26.1 43.5 34.8 43.5
kW3939496979
AMPs 14.4 43.3 14.4 43.3 19.2 43.3 28.8 43.3 33.7 43.3
kW3113114116.011711911
AMPs 13.0 47.8 13.0 47.8 17.4 47.8 26.1 47.8 30.4 47.8 39.1 47.8
kW3133134136.013713913
AMPs 10.8 46.9 10.8 46.9 14.4 46.9 21.7 46.9 25.3 46.9 32.5 46.9
kW3133164164.01671691612161416
AMPs 8.3 36.1 8.3 44.4 11.1 44.4 11.1 44.4 19.4 44.4 25.0 44.4 33.3 44.4 38.9 44.4
kW3133184184.018718918121814181618
AMPs 7.5 32.6 7.5 45.2 10.0 45.2 10.0 45.2 17.6 45.2 22.6 45.2 30.1 45.2 35.1 45.2 40.2 45.2
kW3133204264.026738938123814381638
AMPs 3.8 16.3 3.8 25.1 5.0 32.6 5.0 32.6 8.8 47.7 11.3 47.7 15.1 47.7 17.6 47.7 20.1 47.7
kW3133204264.026746946124614461646
AMPs 3.0 13.1 3.0 20.1 4.0 26.1 4.0 26.1 7.0 46.2 9.0 46.2 12.0 46.2 14.1 46.2 16.1 46.2
06
08
UNIT
VOLTAGE
AND PHA SE
Three Phase
208
230
460
575
BLOW - THRU ELECTRI C HEAT
Unit Size
1417101204
Single Phase
02
03
208
230
277
115
ENVIRO-TEC
COIL AND FILTER DATA • MQL
9
ENVIRO-TEC®offers hot water, chilled water, direct expansion (DX), and standard steam coils for specific
application with all Model MQL blower coils. Coils tested in accordance with ARI 410, and strict on-site
inspection before, during, and after installation guarantees the highest quality and performance available.
Standard Features
• ENVIRO-TEC® coils are designed, manufactured and
tested by Johnson Controls
• 1/2" O.D. seamless copper tubes
• Aluminum fin construction with die-formed spacer
collars for uniform spacing
• Mechanically expanded copper tubes leak tested to a
minimum 450 PSIG air pressure under water
• Manual air vent plug on all water coils
• Copper ODM sweat connections
• 300 PSIG working pressure at 200°F
• Evaporator coils are factory sealed and charged with a
minimum of 5 PSIG nitrogen or refrigerated dry air
• Refrigerant coils are provided with a fixed orifice distributor. Thermal expansion valves are not included.
• Steam coils rated at maximum for 15 PSIG
• 0.016" tube wall thickness (0.025" on steam)
Optional Features
• Stainless steel coil casings
• Automatic air vents on water coils
• Elevated working pressure ratings
• Heat pump compatible cooling coils
• Double circuit DX coils (50-50 split)
• 0.025" tube wall thickness
Coil
Face Area Qty. Dimensions Face Area Qty. Dimensions Face Area
02 2.1 [0.20] 1 16x20x2 [406x508x51] 2.2 [0. 20] 2 16x20x2 [406x508x51] 4.4 [0.41]
03 2.9 [0.27] 1 16x25x2 [406x635x51] 2.8 [0. 26] 2 16x25x2 [406x635x51] 5.6 [0.52]
04 3.8 [0.35] 2 16x20x2 [406x508x51] 4.4 [0. 41] 2 20x25x2 [508x635x51] 6.9 [0.64]
06 5.6 [0.52] 2 20x25x2 [508x635x51] 6.9 [0. 64] 4 20x20x2 [508x508x51] 11.1 [1.03]
08 7.4 [0.69] 2 20x25x2 [508x635x51] 6.9 [0. 64]
2
2
16x20x2 [406x508x51]
20x25x2 [508x635x51]
11.4 [1. 06]
10 9.7 [0.90]
1
2
16x25x2 [406x635x51]
20x25x2 [508x635x51]
9.7 [0. 90]
2
4
16x20x2 [406x508x51]
20x20x2 [508x508x51]
15.6 [1. 45]
12 12.6 [1.17] 4 20x25x2 [508x635x51] 13.9 [1. 29] 6 20x25x2 [508x635x51] 20.8 [1.93]
14 14.3 [1.33] 8 16x20x2 [406x508x51] 17.8 [1. 65]
3
6
20x25x2 [508x635x51]
20x20x2 [508x508x51]
27.1 [2. 52]
17 17.0 [1.58] 6 20x25x2 [508x635x51] 20.8 [1. 93] 12 20x20x2 [508x508x51] 33.3 [3.09]
COIL AND FILTER DATA
Unit Sizes
V-Bank Filters
Flat Filters
NOTES:
1. Standard filters are 2" throwaway; optional filters are 2" pleated.
2. Filter sizes are nominal and standard size, measured in inches [millimeters].
3. Coil and filter face areas are measured in square feet [square meters].
4. Cooling and heating coils have same face area.
5. For coil connection sizes, refer to the ENVIRO-TEC
®
Coil Selection Program.
ENVIRO-TEC
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