®
Configurable Packaged Air Handling Equipment
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VALENT
A MANUFACTURER OF HIGHLY-CONFIGURABLE AIR HANDLING
EQUIPMENT DESIGNED TO MEET THE NEEDS OF ENGINEERS,
CONTRACTORS AND BUILDING OWNERS
Valent assembly line in Minneapolis, MN.
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QUALITY
RELIABILITY
At Valent’s core is a commitment to quality expressed
As evidenced in the use of direct-drive supply and
in the following four categories:
exhaust fans, energy recovery options with no
People
We believe that quality products begin with quality
people, which is why we continuously invest in the
moving parts, and a dependable controls platform,
Valent equipment is designed for safe, consistent
performance throughout its entire service life.
development of our teams.
FLEXIBILITY
Performance
Valent’s product portfolio offers multiple forms of
Quality products are not manufactured by
cooling, heating, and energy recovery in four different
accident; they are the result of repeatable,
casing sizes to fit a wide range of applications.
quality-focused processes.
Partners
SUPPORT
The internal components of our products play a vital
While the shipment of a unit from one of our two
role in unit operation; as such, we partner only with
US-based manufacturing facilities marks the end of
manufacturers who share our passion for quality.
the production cycle, it is only the beginning of the
commitment to our customers and their investment
Products
in our products.
Valent’s engineering and design teams not only
focus on quality in new product development, but
regularly revisit existing designs to improve quality
and manufacturability.
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APPLICATIONS
VALENT PRODUCTS ARE DESIGNED TO OPERATE IN A WIDE RANGE
OF APPLICATIONS AND SYSTEMS
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K-12 Education
Higher Education
Hospitality
Office
Manufacturing
Healthcare
Laboratory
Food Service
DEDICATED OUTDOOR
AIR SYSTEMS
MAKE-UP AIR SYSTEMS
Dedicated outdoor air systems (DOAS) are defined by
and require greater control over space conditions.
the separation of space and ventilation loads. DOAS
With the ability to precisely control leaving air
ventilation loads are almost exclusively 100% outdoor
temperatures of 100% outdoor air loads in heating,
air and typically at volumes where air-to-air energy
cooling, and dehumidification modes, Valent make-up
recovery is required. Valent offers a broad range of
air units are up to the demands of these installations.
Make-up air systems continue to grow in complexity
cooling, heating, and energy recovery combinations
for direct integration into these systems.
VARIABLE AIR VOLUME
SYSTEMS
COMFORT COOLING
SYSTEMS
Variable air volume systems (VAV) are commonly
While standard minimal-outdoor air packaged rooftops
used to address the wide range of load distribution
can meet the needs of these systems, many owners
within a space. With features such as VFD-driven
and engineers see benefit to using a fully-featured
supply and exhaust fans, cooling and heating capacity
air handler in its place. Valent products are well suited
modulation, and integral energy recovery, Valent
towards these installations with modulating cooling
equipment is designed to handle the variation
capacity, a true dehumidification cycle, low-sound
these systems demand.
condensing fans, and air-to-air energy recovery in
a single footprint.
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PRODUCTS
MULTIPLE PRE-CONFIGURED PLATFORMS PROVIDE AN ARRAY OF
SOLUTIONS TO BEST MEET THE NEEDS OF EACH APPLICATION
FACTORY RUN TESTING
All Valent equipment is subject to a factory run test that involves much more than simply
energizing components to verify if they enable. With an average run time of 90 minutes,
Valent’s test technicians review a broad range of operating parameters in the following categories:
• Refrigeration – refrigeration systems run at multiple conditions where superheat and subcooling
performance are recorded and evaluated
• Heating – heating elements tested as installed inside each unit using the as-ordered fan arrangement
• Electrical – individual component continuity and phasing verified
• Airflow – fans are inspected for smooth rotational characteristics as installed in the unit
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PACKAGED AIR HANDLERS
VPR and VPRX Series
The VPR and VPRX series are capable of cooling,
heating, and dehumidifying a wide range of entering
air loads, up to 100% outdoor air. In applications
with lower outdoor air requirements, the VPRX
offers powered exhaust fans for pressure relief
and economizer control.
PACKAGED ENERGY RECOVERY
AIR HANDLERS
VPRE Series
Valent’s most common energy recovery ventilator,
the VPRE series, expands upon the VPR packaged
platform with an air-to-air enthalpy wheel and powered
exhaust fan section. Two media types are available to
best suit the needs of each application; a lightweight
polymer wheel with a silica gel desiccant or aluminum
wheel with a molecular sieve.
VPRC Series
VPRP Series
When recovering sensible and latent energy is a
In applications where sensible-only energy recovery
priority but the maintenance requirements of an
is desired, the VPRP delivers with an all-aluminum
enthalpy wheel are unwanted, the VPRC with enthalpic
plate heat exchanger that offers low pressure drops
core heat exchanger is an excellent alternative.
and extremely low leakage rates. Although commonly
In addition to offering extremely low leakage rates,
used in dry climates, the VPRP is also an effective
the polymer media of the core heat exchanger can
solution whenever space humidity levels are high,
safely handle the accumulation of condensate and
such as in a locker room.
will not sustain damage from the formation of frost.
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COOLING AND HEATING
MULTIPLE HEATING AND COOLING OPTIONS ALLOW FOR STAND-ALONE
OPERATION OR INTEGRATION WITH A CENTRAL SYSTEM
REFRIGERATION TECHNOLOGIES
Capacity Modulation
The cooling and dehumidification loads of high outdoor air volumes vary greatly throughout
each season, month, and day of operation. Despite this variation, Valent is able to provide tight
control over space temperature and humidity through several technologies, including: Digital ScrollTM
compressors, multi-circuit refrigeration systems, and tandem compressor sets.
Modulating Hot Gas Reheat
With our roots in 100% outdoor air dehumidification, Valent has always offered a robust hot gas reheat
system to maintain control over leaving air temperatures. Transferring energy through a high-efficiency,
5/16” tube hot gas reheat coil, the system modulates the flow of refrigerant to achieve tight control of the
discharge air temperature during dehumidification mode.
Active Head Pressure Control
Active management of the refrigerant head pressure dramatically improves dehumidification performance at part loads
— resulting in greater control over space conditions. Valent’s premier method of head pressure control, AHPC 2.0, varies
the flow of air across the condensing coil through a set of modulating condensing fans featuring noise-reducing blade
technology and brushless DC motors.
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COOLING
Packaged Air Cooled DX
Water Source Heat Pump
Valent equipment with packaged air cooled
Capable of operating on boiler-tower or geothermal
direct-expansion (DX) refrigeration systems are
water loops, Valent’s water source heat pump
designed to operate over a wide range of loads and
refrigeration systems deliver greater efficiencies
ambient conditions. Within each nominal tonnage,
than equivalent air cooled units. Standard on all
two coil sets are offered to best fit the application:
water source heat pumps is an advanced head
Dehumidification, designed for applications with
pressure control system that optimizes unit operation
large dehumidification loads; and High Airflow,
in cooling, dehumidification, and heating modes and
intended for airflows that will see a broad range of
protects against freezing. In addition, energy transfer
loading from dehumidification to comfort cooling.
between water and refrigerant is through a coaxial
All air cooled package DX systems utilize condensing
heat exchanger designed to handle the low entering
coils with 5/16” tubes to increase the efficiency at
water temperatures of geothermal systems.
which heat is rejected into the atmosphere.
Air Source Heat Pump
Split Air Cooled DX
Built on the same platform as the packaged air cooled
Valent’s split air cooled DX refrigeration system
DX system, the air source heat pump offers a reversing
utilizes the same platforms and technologies as our
cycle to move heat from the outside air to the supply
packaged air cooled products but is paired with a
air. The air source heat pump is capable of heating as
remote condenser in lieu of a local condensing section.
low as 17°F ambient — below this temperature the on
Compressors remain mounted in the indoor unit for
board controller will automatically switch to auxiliary
reliability and piping simplification, eliminating the
heat. Unlike most air source heat pumps, the defrost
need for a third refrigerant line on circuits with hot
cycle developed by Valent is not based solely on timers;
gas reheat. In addition, Valent’s ability to provide true
rather, the program determines if conditions exist for
horizontal connections on energy recovery equipment
freezing prior to deploying a defrost cycle. The result?
without the use of an adapter curb make indoor
Fewer unnecessary defrost cycles performed with
installations much easier to execute.
less energy consumed.
HEATING
Valent products are available with a number of heating
options to best meet the needs of each application.
• Indirect Gas – always modulating, available in
4:1 or 10:1 turn-down
• Temperator – hybrid heating system pairing a
4:1 modulating furnace with a small SCR electric
heater for total capacity modulation
• Electric – modulation achieved through SCR
• Hot Water – allows connection to hot water loop
in lieu of a gas line or increased electrical loads
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OPTIONS AND CAPACITIES
PRE-ENGINEERED OPTIONS AND CASINGS ENHANCE
APPLICATION FLEXIBILITY
E
D
A
A
B
F
A
C
C
A – Filtration
C – Duct Connections
E – Head Pressure Control
• Washable aluminum
• Vertical
• Standard staged fans
• MERV 8
• Horizontal
• Active Head Pressure Control 2.0
with brush-less DC motors,
noise-reducing blade technology,
and uniform control strategy
• MERV 11 (+MERV 8)
• MERV 14 (+MERV 8)
B – Controls
• Space or discharge temperature
and humidity control
• Modulating supply fan, exhaust fan,
or dampers based on pressure,
CO2, or 0-10 VAC signal
• Single-zone VAV
• Refrigeration-only Controls Lite option
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D – Energy Recovery
• Polymer enthalpy wheel
• Aluminum enthalpy wheel
• Sensible-only flat-plate
• Enthalpic flat-plate
F – Refrigeration
• Modulating hot gas reheat
• Dehumidification-specific or
broad-range evaporator coil sets
AIRFLOW CAPACITIES
Nominal Airflow [CFM]
650
1,000
1,500
VPR/VPRX
2,000
3,000
4,000
5,000
7,500
10,000
12,500
15,000
17,500
20,000 22,500
110
210
AIRFLOW CAPACITIES
310
350
VPRE
110
210
310
350
VPRP
110
210
310
350
VPRC
110
210
310
350
Airflow ranges are shown
with packaged air cooled DX refrigeration and do not take into account actual design loads.
REFRIGERATION
CAPACITIES
REFRIGERATION CAPACITIES
Nominal Tonnage
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Packaged Air
Cooled
8
10
13
16
18
20
25
30
35
40
50
60
110
210
310
350
Split Air
Cooled
110
210
310
Water Source
Heat Pump
110
Air Source
Heat Pump
110
210
210
HEATING CAPACITIES
Input Capacity [MBH]
HEATING CAPACITIES
100
Indirect Gas,
Temperator
150
200
300
400
500
600
700
800
900
1200
150
200
110
210
310
350
Electric Capacity [kW]
10
15
SCR Electric
20
30
40
50
60
100
125
110
210
310
350
Electric heat sizes shown at 460 VAC.
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®
Contact your Valent representative
today for more information.
www.valentair.com
60 28TH AVENUE NORTH, SUITE 100
MINNEAPOLIS, MINNESOTA 55411
T – 612.877.4850
Valent is a business of Unison® Comfort Technologies.
© 2014 Valent. CB.10.2014