The 987MA Multipoise Variable--Speed Condensing Gas Furnace features the modulating Evolution System. The Perfect Heat Technology modulating gas system is at the heart of the comfort provided by this furnace, along with the Perfect ECM full--featured variable--speed communicating blower motor, and variable--speed inducer motor. This Evolution Gas Furnace also features 4--way multipoise installation flexibility, and is available in six model sizes.
Features
- Evolution System; compatible with single-- and multi--zone Evolution systems.
- Evolution Features?match with the Evolution Control for Evolution System benefits.
- All sizes meet ENERGY STAR Version 4.0 criteria for gas furnaces: 95+AFUE; AMACF electrical rating; 2% or less
cabinet airflow leakage.
- Ideal height 35" (889 mm) cabinet: short enough for taller coils, but still allows enough room for service.
- Silicon Nitride Perfect Light Hot Surface Igniter.
- SmartEvap technology helps control humidity levels in the home when used with a compatible humidity control system.
- FanOn Plus technology allows control of continuous fan
speed from a compatible thermostat.
- External Media Filter Cabinet included.
- 4--way multipoise design for upflow, downflow or horizontal installation with unique vent elbow and optional through--the--cabinet downflow venting capability.
- Full--featured variable--speed communicating blower motor, variable--speed inducer motor, and modulating gas valve.
- Aluminized--steel primary heat exchanger.
- Stainless--steel condensing secondary heat exchanger.
- Propane convertible
- Factory--configured ready for upflow applications.
- Fully--insulated casing including blower section.
- Convenient Air Purifier and Humidifier connections.
- Direct--vent/sealed combustion or ventilated combustion air.
- Installation flexibility: sidewall or vertical vent.
- Residential installations may be eligible for consumer financing through the Retail Credit Program.
- Variable--Speed blower motor, variable--speed inducer motor, and modulating gas valve.
- Self--diagnostics and extended diagnostic data through the Advanced Product Monitor (APM) accessory or Evolution User Interface.
- Adjustable blower speed for cooling, continuous fan, and dehumidification.
- Certified to leak 2% or less of nominal air conditioning CFM delivered when pressurized to 1--in. water column with all present air inlets, air outlets, and condensate drain port(s) sealed.
- 10 year parts and lifetime heat exchanger limited warranty to the original purchaser upon timely registration.
- Limited warranty period is five years for parts and twenty years for the heat exchanger if not registered within 90 days of installation.