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.

Sales Brochures

Commercial Product Line Brochure

Commercial Product Line Brochure - Water Source Heat Pumps Only

Whisperline^® Two-Stage Water Source Heat Pump Brochure

Whalen Bullseye Riser Centerline System

Cut Sheet

Cut Sheet - Whisperline^® Two-Stage Water Source Heat Pump

Design Guide

Design Guide - Whisperline^® Two-Stage Water Source Heat Pump

Technical Documents

 IO Zone 560 Point List

Product Specifications

Unit Specification - Whisperline^® Two-Stage Water Source Heat Pump

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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