Whisperline^® Two-Stage Water Source Heat Pump - Overview

Introducing the Whisperline^® VD Series, the industry’s first and only 2-stage vertical stack water source heat pump; a highly efficient unit and the ideal solution for high performance buildings. The VD Series includes a two-stage scroll compressor and an ECM Motor (electronically commutated) resulting in superior efficiency and comfort.

This series offers our customers best-in-class comfort, efficiency and low noise levels along with a wide range of available options. The Whisperline^® VD incorporates a number of features and options that provide maximum comfort and performance to users and maximum flexibility to engineers and architects.

Benefits
Technical Data
Literature

Market Exclusivity

Industry’s first and only 2-stage vertical stack water source heat pump.

Energy Efficient

Best-in-class 2-stage efficiency provides year round savings.

Quiet Operation

Best-in-class sound levels and quiet operation. High efficiency ECM constant torque fan motor for low sound levels.

Ease in Serviceability

Service friendly features for easy repair and installation.

Application Flexibility

Extensive features and options to meet virtually any jobsite requirement.

Cabinet Design

Low leakage galvanized steel cabinet. Lift-out stainless-steel drain pan.

Low Vibration

Floating compressor design and cabinet isolation pad to minimize vibration transmission.

Superior Protection

Solid state safety controls for superior protection.

Supply Opening

Left, right, front, back and top combinations. All supply openings are painted black to block the view into the unit and when one unit is used for two rooms, a sight baffle is placed between the two grilles.

Supply/Return Risers

Provided to meet the requirements of the jobsite. Custom lengths and spacing can be provided to meet the exact floor to floor dimension of the project. Risers are factory installed and piped to ball valves within the cabinet.

Refrigeration Chassis

Removable-floating design with insulated compressor compartment and vibration isolation.

Technical Data Two Stage

Drawing Files

NOTE: When selecting Revit Model, choose all units based on the largest riser size.

Whisperline^®2-Stage with Standard Riser Spacing: Up to 2 1/2 inch Risers

rfa icon Revit^® Drawing – Whisperline^® 2-Stage - Standard Riser Spacing

rfa icon Revit^® Drawing – Whisperline^® 2-Stage - Risers By Others

Whisperline^®2-Stage with Extended Riser Spacing: Up to 4 inch Risers

rfa icon Revit^® Drawing – Whisperline^® 2-Stage - Extended Riser Spacing

rfa icon Revit^® Drawing – Whisperline^® 2-Stage - Extended Riser Spacing - Risers By Others

Whisperline^®2-Stage with Split Riser Spacing: Up to 4 inch Risers

rfa icon Revit^® Drawing – Whisperline^® 2-Stage - Split Riser Spacing

rfa icon Revit^® Drawing – Whisperline^® 2-Stage - Split Riser Spacing - Risers By Others

Whisperline^®2-Stage Designed for Cast-In Fire-Stops: 3/4 inch to 2 inch Risers

rfa icon Revit^® Drawing – Whisperline^® 2-Stage - Cast-In Fire-Stop up to 2"

rfa icon Revit^® Drawing – Whisperline^® 2-Stage - Cast-In Fire-Stop up to 2" - Risers By Others

Whisperline^® 2-Stage Designed for Cast-In Fire-Stops: 2 1/2 inch to 3 inch Risers

rfa icon Revit^® Drawing – Whisperline^® 2-Stage - Cast-In Fire-Stop 2" to 3"

rfa icon Revit^® Drawing – Whisperline^® 2-Stage - Cast-In Fire-Stop 2" to 3" - Risers By Others

Whisperline^® 2-Stage Designed for Cast-In Fire-Stops: 4 inch Risers

rfa icon Revit^® Drawing – Whisperline^® 2-Stage - Cast-In Fire-Stop 4"

rfa icon Revit^® Drawing – Whisperline^® 2-Stage - Cast-In Fire-Stop 4" - Risers By Others

Whisperline® WCS Console Unit

The Whisperline® WCS series water source heat pump console unit provides environment friendly, high efficiency, cooling and heating where individual, quiet control of space is a priority.

The WCS series is designed with the growing retrofit market in mind,making it an ideal choice for renovation or new construction projects.The unit cabinet is powder-painted appliance-grade steel andincludes an attractive extruded aluminum grille and control door.

The WCS series has two chassis sizes, small (models 08, 10 and 12), and large (models 15 and 18). Quality components, careful design and testing, and the latest in environmentally friendly technology advances assure long life, user satisfaction, and lower energy cost.

Benefits
Technical Data
Literature

The WCS Series is the perfect solution for new construction and replacement projects the competition can’t match. The Whalen Company backs the WCS with a customer friendly one-year parts and labor warranty and five-year compressor warranty.

Damage Protection

The standard high-pressure switch and evaporator coil freeze protection, in conjunction with the electronic control board, stops unit operation before damage occurs, should airflow become reduced or obstructed due to dirty filters, obstructed airflow, or motor failure. A freezestat protects the water coil from freeze damage due to water temperature or flow problems. The water coil is designed for low water-side pressure drop, eliminating potential pump sizing and water flow problems. High efficiency compressors provide demonstrated reliability and low sound levels and cut energy costs.

Fast and Easy Replacement

Because the WCS dimensions and construction details were established with retrofit projects in mind, replacement work is fast and easy. With the compact footprint and a cabinet height short enough to fit under window sills, the need for expensive room renovation, redecorating, or piping & wiring changes is eliminated. The WCS is the solution that gets your property back in service nquickly and at the lowest total cost.

Optional Chassis Only

These console units are offered as chassis-only to work with the existing or custom room cabinets or with a new cabinet for a complete installation. The chassis contains the compressor, air side heat exchanger, water side heat exchanger, evaporator fan motor, and control and safety components.

Options and Accessories

• Room cabinet (LH and RH available)
• Flow control valve
• Electric or hydronic heat
• Control options
• Valves and unions
• Line cords
• Boilerless
• Hose kits
• Customer-specified custom features
• Low temp option

Whisperline® WCS Console Water Source Heat Pump

WCS Console Technical Data

Sales Brochures

pdf icon Commercial Product Line Brochure

Commercial Product Line Brochure - Water Source Heat Pumps Only

Whisperline® WCS Console Brochure

Cut Sheet

pdf icon Cut Sheet - Whisperline® WCS Console

Design Guides

pdf icon Design Guide – Whisperline^® WCS Console

Installation and Operation Manual

pdf icon IOM – Whisperline^® WCS Console

Whisperpack^® Water Source Air Conditioning and Hydronic Heat – Overview

Whisperpack vertical stack fan coil heat pump main If you're looking for a unit that provides the reliable air conditioning of a water source heat pump with the near-silent heating of a fan coil, the Whisperpack^® from Whalen delivers the best of both worlds.

Combining the best characteristics of our field-proven compressorized and fan coil products, we’ve developed a unit that delivers superior air conditioning performance along with the operational characteristics found in our powerfully productive fan coil units.

Whisperpack^® units benefit owners during the heating season through the use of a hydronic heating coil in lieu of reversing the refrigerant cycle. This allows for energy savings by turning the compressor off and diverting the condenser water to a heating coil.

Benefits
How It Works
Technical Data
Literature

True to our commitment to offer equipment that’s flexible enough to meet the design of the building rather than forcing a building to conform to limitations of the equipment, our Whisperpack^® Air Conditioners with Hydronic Heating can be applied to any type of building.

They’re particularly advantageous for new construction or renovation of apartments, condominiums, hotels, senior living facilities, dormitories and office buildings. This philosophy behind Whisperpack^® units isn’t limited to physical size or optional accessories, either. They’re capable of performing at peak operating efficiency at entering water temperatures between 85°F and 120°F.

Easy to Install and Service

By utilize a single set of risers, Whisperpack^® units are able to stack from floor to floor, thereby simplifying the installation. For staged installation projects, cabinets can be shipped separately from the refrigerant chassis.

The chassis, which includes the complete refrigerant circuit, slides into the cabinet after the construction debris has been removed to ensure trouble-free operation at start-up.

When a chassis requires service, it can be quickly replaced in a matter of minutes by sliding the existing chassis out and sliding a spare chassis into the cabinet.

Efficient and Environmentally Friendly

With efficiencies up to 15.7 EER, Whisperpack^® units are both environmentally and economically friendly. Operating well above the ASHRAE 90.1 minimum, these units exceed minimum thresholds for most utility rebate and incentive programs. All units run on Ozone-friendly R-410A refrigerant.

Small in Size … Quiet in Operation

Since we offer one of the smallest footprints in the industry along with customization capabilities including cabinet height, riser locations, handing and discharge arrangements and sizes, your new Whisperpack^® units will be installed and operating in significantly less time.

Dual-level vibration isolators are integrated into every unit to help minimize vibration and noise transmission. An acoustically insulated compressor enclosure further reduces any sound transmission, making these units ideal for noise-sensitive applications.

Supply Opening

  Left, Right, Front, Back and Top Combinations – all supply openings are painted black to block the view into the unit. When one unit is used for two rooms, a sight baffle is placed between the two grilles.

Supply Grille

  Aluminum construction minimizes future maintenance and eliminates oxidation that can be caused from condensation.

Supply grilles are offered in single or double deflection, with or without an opposed blade damper.

Supply/Return Risers

  These are provided to meet the requirements of the job site. Custom lengths can be provided to meet the exact floor-to-floor dimension of the project.

Risers are factory-installed and piped to ball valves within the cabinet, or they can be shipped separately to the job site.

Riser Cover

  A galvanized steel protective cover is standard to avoid riser damage during shipping, handling and installation.

Control Valves

A 3-way control valve is standard on every Whisperpack^® unit. For added flexibility, we offer an option for two 2-way valves for use with variable speed pump systems.

Ball Valves  

Shutoff valves with hose bib (GHT) connection are standard on every unit.

Fan/Motor Assembly  

Plug-in type fan/motor assemblies are easily removed through the return air opening.

Insulation

All units are available with glass fiber high density insulation, with thermal and acoustical properties.

Cabinet  

Single-piece galvanized monocoque construction with a snap-lock front panel prevents air leakage through cabinet seams to increase efficiency.

Refrigeration Chassis  

The removable chassis is a floating design with insulated compressor compartment and vibration isolation.

Hydronic Heating Coil

For heating, a 2-row or 3-row integral water heating coil utilizes the hot water supply piping in the building to eliminate the need to operate the compressor when heat is needed.

Water Hoses  

Stainless steel braided hoses connect the chassis to the supply and return water piping, while isolating the compressor vibration from the building's piping system.

Inner Service Panel

  Removable for access to unit control wiring and internal piping.

Filter  

Filters are available in "throwaway" and permanent options.

Drain Pan

 The drain pain covers the entire unit bottom.

Thermostat

Several thermostat options are available in the following configurations:

Low voltage
Plug-in or remote mounted
Manual or automatic changeover
Electro-mechanical or electronic

Acoustical Panel 

Standard and flush-mounted designs feature a hinged door to allow for filter removal – without the use of tools.

Return Air Grille 

The aluminum grille comes with standard or removable core capabilities.

Unit Tagging

  Each Whisperpack^® unit from Whalen is individually boxed and tagged with factory and customer-supplied information. Each unit can be tagged with specific room numbers, riser numbers or any other special requirements of the project.

AHRI Certified

AHRI Certified Water Source Heat Pump

Heating Mode

In the heating mode, warm condenser water is diverted through the hydronic coil via a 2-way control valve. The air coil supplies warm air to the conditioned space. The 2-way valve that allows water to flow to the refrigerant-to-water heat exchanger is in the closed position. (See Figure 1 below)

Whisperpack vertical stack fan coil 03 heating

Cooling Mode

In the cooling mode, cold refrigerant flows through the air coil. The heat pump supplies cool air to the conditioned space. The heat removed from the room air is transferred to the refrigerant flowing through the refrigerant coil. (See Figure 2 below.)

Whisperpack vertical stack fan coil 03 cooling

Whisperpack^® Water Source Heat Pump

WhisperPack Water Source Heat Pump Technical Data

Sales Brochures

pdf icon Commercial Product Line Brochure

Commercial Product Line Brochure - Water Source Heat Pumps Only

pdf icon Whisperpack^® Brochure

pdf icon Whisperpack^® Heat Pump Chassis Installation Guide

pdf icon Whalen Bullseye Riser Centerline System

Cut Sheet

pdf icon Cut Sheet - Whisperpack^®

Design Guide

pdf icon Design Guide – Whisperpack^® Classic AC with Hydronic Heat

Installation and Operation Manual

pdf icon IOM – Whisperline^® / Whisperpack^® Classic

Technical Documents

pdf icon IO Zone 560 Point List

Product Specifications

doc icon Unit Specification – Whisperpack^® Classic AC with Hydronic Heat

doc icon Unit Specification – Whisperpack^® Ducted Vertical AC with Hydronic Heat

Drawing Files

NOTE: When selecting Revit Model, choose all units based on the largest riser size.

Whisperpack^®with Standard Riser Spacing: Up to 2 1/2 inch Risers

rfa icon Revit^® Drawing – Whisperpack^® - Standard Riser Spacing

rfa icon Revit^® Drawing – Whisperpack^® - Extended Cabinet - Outdoor Air - Standard Riser Spacing

rfa icon Revit^® Drawing – Whisperpack^® - Risers By Others

rfa icon Revit^® Drawing – Whisperpack^® - Extended Cabinet - Outdoor Air - Risers By Others

Whisperpack^®with Extended Riser Spacing: Up to 4 inch Risers

rfa icon Revit^® Drawing – Whisperpack^® - Extended Riser Spacing

rfa icon Revit^® Drawing – Whisperpack^® - Extended Cabinet - Outdoor Air - Extended Riser Spacing

rfa icon Revit^® Drawing – Whisperpack^® - Extended Riser Spacing - Risers By Others

rfa icon Revit^® Drawing – Whisperpack^® - Extended Cabinet - Outdoor Air - Extended Riser Spacing - Risers By Others

Whisperpack^®with Split Riser Spacing: Up to 4 inch Risers

rfa icon Revit^® Drawing – Whisperpack^® - Split Riser Spacing

rfa icon Revit^® Drawing – Whisperpack^® - Extended Cabinet - Outdoor Air - Split Riser Spacing

rfa icon Revit^® Drawing – Whisperpack^® - Split Riser Spacing - Risers By Others

rfa icon Revit^® Drawing – Whisperpack^® - Extended Cabinet - Outdoor Air - Split Riser Spacing - Risers By Others

Whisperpack^®Designed for Cast-In Fire-Stops: 3/4 inch to 2 inch Risers

rfa icon Revit^® Drawing – Whisperpack^® - Cast-In Fire-Stop up to 2"

rfa icon Revit^® Drawing – Whisperpack^® - Extended Cabinet - Outdoor Air - Cast-In Fire-Stop up to 2"

rfa icon Revit^® Drawing – Whisperpack^® - Cast-In Fire-Stop up to 2" - Risers By Others

rfa icon Revit^® Drawing – Whisperpack^®- Extended Cabinet - Outdoor Air - Cast-In Fire-Stop up to 2" - Risers By Others

Whisperpack^® Designed for Cast-In Fire-Stops: 2 1/2 inch to 3 inch Risers

rfa icon Revit^® Drawing – Whisperpack^® - Cast-In Fire-Stop 2" to 3"

rfa icon Revit^® Drawing – Whisperpack^® - Extended Cabinet - Outdoor Air - Cast-In Fire-Stop 2" to 3"

rfa icon Revit^® Drawing – Whisperpack^® - Cast-In Fire-Stop 2" to 3" - Risers By Others

rfa icon Revit^® Drawing – Whisperpack^® - Extended Cabinet - Outdoor Air - Cast-In Fire-Stop 2" to 3" - Risers By Others

Whisperpack^® Designed for Cast-In Fire-Stops: 4 inch Risers

rfa icon Revit^® Drawing – Whisperpack^® - Cast-In Fire-Stop 4"

rfa icon Revit^® Drawing – Whisperpack^® - Extended Cabinet - Outdoor Air- Cast-In Fire-Stop 4"

rfa icon Revit^® Drawing – Whisperpack^® - Cast-In Fire-Stop 4" - Risers By Others

rfa icon Revit^® Drawing – Whisperpack^® - Extended Cabinet - Outdoor Air - Cast-In Fire-Stop 4" - Risers By Others

Closetline^® Packaged Water Source Heat Pump

CAS Units side by side The Closetline^® CAS series from The Whalen Company boasts a compact cabinet, making this heat pump system the perfect solution for commercial retrofit or new construction applications.

The Closetline^® CAS series far exceeds the ASHRAE 90.1 minimum efficiency and utilizes environmentally friendly refrigerant to reduce operating costs without compromising the environment. Closetline^® water source heat pumps are popular in a variety of building applications where quiet operation in a compact footprint is a key requirement.

True to our commitment to offer equipment that’s flexible enough to meet the design of the building rather than forcing a building to conform to limitations of the equipment, our Closetline® packaged water source heat pumps can be applied to virtually any type of building.

With its compact footprint, the Closetline^® CAS Series is particularly advantageous for new construction or renovation of apartments, condominiums, hotels, senior living facilities, dormitories and office buildings.

Benefits
How It Works
Technical Data
Literature

Compact Footprint

Compact cabinet design with quick access for ease of service. Horizontal units can be serviced through the unit bottom to virtually eliminate removing ceiling mounted units for service.

Fan Operation

Oversized blower for quiet operation. A PSC fan motor is standard for economical operation with an optional constant torque multi-speed EC motor, with soft start and serviceable from one side.

Drain Pan

Internally trapped (vertical models), stainless steel drain pan for years of trouble-free service.

Compressor

Compact and efficient compressors, with double isolation for quiet operation.

Reliable Operation

Thermostatic expansion valve maintains maximum capacity under a wide range of operating conditions.

Coaxial Heat Exchangers

Heavy duty coaxial heat exchanger for reliability. Enhanced internal surface treatment for increased efficiency (CuNi available).

Easy to Install

Water connections are securely mounted flush to the cabinet to eliminate the need for a backup wrench.

Electronic Control Board

Each unit ships with solid state microprocessor controls with safeties built-in for reliable protection.

Built to Last

Satin galvanized and acoustically insulated cabinet for years of quiet operation.

Geothermal Application

Unit capable of operation on a closed loop or a water well installation.

Hot Gas Reheat Option

Hot Gas Reheat is used for humidity control and for occupant comfort. The integrated reheat coil is used to add sensible heat to the air stream to maintain the temperature setpoint and occupant comfort.

Heating Mode

 In the heating mode (Figure 1), hot refrigerant flows through the air coil. The heat pump supplies warm air to the conditioned space. The heat added to the room air is removed from the water flowing through the coil, plus rejected compressor heat.

Whisperline fixed chassis packaged HP 01 heating

Cooling Mode

 In the cooling mode (Figure 2), cold refrigerant flows through the air coil. The heat pump supplies cool air to the conditioned space. The heat removed from the room air is transferred to the water flowing through the water coil.

Whisperline fixed chassis packaged HP 01 cooling

Closetline^® Horizontal Water Source Heat Pump

Closetline CASH Technical Data1

Closetline^® Vertical Water Source Heat Pump

Closetline CASV Technical Data1

Sales Brochures

pdf icon Comm ercial Product Line Brochure

pdf icon Commercial Product Line Brochure - Water Source Heat Pumps Only

pdf icon Closetline^® Brochure

Quick Reference Guide

Quick Reference Guide - Closetline^® WC Compact 1-stage

Quick Reference Guide - Closetline^® WR mid-size 1-stage

Quick Reference Guide - Closetline^® WZ mid-size 2-stage

Cut Sheet

Cu t Sheet - Closetline^® WC Compact 1-Stage

Cu t Sheet - Closetline^® WR Mid-Size 1-Stage

Cu t Sheet - Closetline^® WZ Mid-Size 2-Stage

Design Guides

Design Guide – Low GWP - Closetline^® WC Compact 1-stage Packaged Water Source Heat Pump

Design Guide – Low GWP - Closetline^® WR Mid-size 1-stage Packaged Water Source Heat Pump

Design Guide – Low GWP - Closetline^® WZ Mid-size 2-stage Packaged Water Source Heat Pump

pdf icon Design Guide – Closetline^® Horizontal and Vertical Water Source Heat Pump

Installation and Operation Manuals

IOM – Low GWP - Closetline^® WC Compact 1-stage Packaged Water Source Heat Pump

IOM – Low GWP - Closetline^® WR Mid-size 1-stage Packaged Water Source Heat Pump

IOM – Low GWP - Closetline^® WZ Mid-size 2-stage Packaged Water Source Heat Pump

pdf icon IOM – Closetline^® Horizontal and Vertical Water Source Heat Pump

Technical Documents

pdf icon IO Zone 560 Point List

Product Specifications

doc icon Unit Specification – Closetline^® Fixed Chassis Water Source Heat Pump

doc icon Unit Specification – Closetpack^® Classic AC with Hydronic Heat

Drawing Files

Closetline^®Horizontal Packaged Water Source Heat Pump - CAS Series R-410A

rfa icon Revit^® Drawing – Closetline^® CAS Series Horizontal Packaged Water Source Heat Pump

Closetline^®Vertical Packaged Water Source Heat Pump - CAS Series R-410A

rfa icon Revit^® Drawing – Closetline^® CAS Series Vertical Packaged Water Source Heat Pump

CAD Drawing – CAS Standard Cabinet - Left Return

CAD Drawing – CAS Standard Cabinet - Right Return

CAD Drawing – CAS Hydronic Cabinet - Left Return

CAD Drawing – CAS Hydronic Cabinet - Right Return

Whisperline^® Water Source Heat Pumps – Overview

Whisperline vertical stack heat pump main At Whalen, it is our philosophy to offer equipment that is flexible enough to meet the design of the building rather than forcing a building to conform to limitations of the equipment. This philosophy is not limited to physical size or optional accessories.

The Whalen Whisperline^® Water Source Heat Pump is a proven concept in air conditioning any type of building – advantageous for new construction and renovation of apartments, condominiums, hotels, senior living facilities, dormitories and office buildings.

The Whisperline^® is capable of performing at entering water temperatures ranging from 20 degrees to 100 degrees F, depending on the configuration you select.

If you're looking for a unit that offers design flexibility, provides a lower installed cost, reduces maintenance, and incorporates features like aluminum grilles for a superior long-lasting appearance, the Whisperline^® is the natural choice for you.

Benefits
How It Works
Technical Data
Literature

Whisperline^® Vertical Stack Water Source Heat Pumps from Whalen are an efficient way to provide quiet, comfortable cooling and heating to high rise multi-floor buildings. These units are economical because they reduce time, material and labor requirements during installation.

Whisperline^® units arrive fully assembled with factory-installed piping packages, controls and risers. A small footprint allows the units to be furred into columns, walls or closets without the need for expensive horizontal connection piping.

Typical Whisperline^® applications include apartment buildings, condos, office towers, hotels, motels, senior living facilities and dormitories.

Easy to Install and Service

By utilizing a single set of risers, Whisperline^® units are able to stack from floor to floor, thereby simplifying the installation. For staged installation projects, cabinets can be shipped separately from the refrigerant chassis.

The chassis, which includes the complete refrigerant circuit, slides into the cabinet after the construction debris has been removed to ensure trouble-free operation at start-up.

When a chassis requires service, it can be quickly replaced in a matter of minutes by sliding the existing chassis out and sliding a spare chassis into the cabinet.

Efficient and Environmentally Friendly

With efficiencies up to 15.5 EER, Whisperline^® units are both environmentally and economically friendly. Operating well above the ASHRAE 90.1 minimum, these units exceed minimum thresholds for most utility rebate and incentive programs. All units run on Ozone-friendly R-410A refrigerant.

Small in Size … Quiet in Operation

Since we offer one of the smallest footprints in the industry along with customization capabilities including cabinet height, riser locations, handing and discharge arrangements and sizes, your new Whisperline^® units will be installed and operating in significantly less time.

Supply Opening  

Supply Grille  

Aluminum supply air grilles minimize future maintenance and eliminate oxidation that can be caused from condensation.

Offered in single or double deflection, with or without an opposed blade damper, the Whisperline^® is available with the right grille for your application.

Supply/Return Risers

  These are provided to meet the requirements of the job site. Custom lengths can be provided to meet the exact floor-to-floor dimension of the project.

Risers are factory-installed and piped to ball valves within the cabinet, or they can be shipped separately to the job site.

Riser Cover  

A galvanized steel protective cover is standard to avoid riser damage during shipping, handling and installation.

Ball Valves  

Shutoff valves with hose bib (GHT) connection are standard on every unit.

Fan/Motor Assembly  

Plug-in type fan/motor assemblies are easily removed through the return air opening.

Insulation

All units are available with glass fiber high density insulation, with thermal and acoustical properties.

Cabinet

  Single-piece galvanized monocoque construction with a snap-lock front panel prevents air leakage through cabinet seams to increase efficiency.

Refrigeration Chassis

  The removable chassis is a floating design with insulated compressor compartment and vibration isolation.

Water Hoses

  Stainless steel braided hoses connect the chassis to the supply and return water piping, while also isolating the compressor vibration from the building's piping system.

Inner Service Panel  

Removable for access to unit control wiring and internal piping.

Filter

  Filters are available in "throwaway" and permanent options.

Drain Pan 

Made of 304 Stainless Steel, the Whisperline^® drain pain covers the entire unit bottom to ensure long life and proper management of condensate.

Thermostat

Several thermostat options are available in the following configurations:

Low voltage
Plug-in or remote mounted
Manual or automatic changeover
Electro-mechanical or electronic.

Acoustical Panel  

Standard and flush-mounted acoustical return air panels feature a hinged door to allow for filter removal – without the use of tools.

Unit Tagging

  Each Whisperline^® unit from Whalen is individually boxed and tagged with factory and customer-supplied information. Each unit can be tagged with specific room numbers, riser numbers or any other special requirements of the project.

AHRI Certified

AHRI Certified Water Source Heat Pump

Heating Mode 

In the heating mode, hot refrigerant flows through the air coil. The heat pump supplies warm air to the conditioned space. The heat added to the room air is removed from the water flowing through the coil, plus the rejected compressor heat. (See Figure 1 below.)

Whisperline vertical stack HP 01 heating

Cooling Mode

 In the cooling mode, cold refrigerant flows through the air coil. The heat pump supplies cool air to the conditioned space. The heat removed from the room air is transferred to the water flowing through the water coil. (See Figure 2 below.)

Whisperline vertical stack HP 01 cooling