Month: December 2008

Universal Twinning Kit

Universal twinning and paralleling of HVAC equipment made simple Up until recently, twinning or paralleling of multiple HVAC units has been a wiring nightmare for contractors. Now Jackson Systems offers the TK-400 Universal Twinning and Paralleling Kit that is design to allow a single thermostat to control two or even four HVAC units. The TK-400 […]

TD-17 timer

The TD-17 timer should not be used with our DFK.  When trying to use the TD-17 in series with W1 from the thermostat and W1 on the HP thermostat terminal strip on our DFK (to delay bringing on the auxiliary heat), W1 will not energize on a call for emergency heat.  The TD-17 is a […]

Honeywell Wireless Thermostat Promotion

Purchase:     (2) Prestige systems or (4) Wireless FocusPRO systems and Receive: a $25 Gas Card Call 1.888.652.9663 and reference Promo Code: HWGAS08 Offer good through January 31, 2009 The thermostats must be purchased on the same invoice Models included: YTHX9321R5003, YTHX9321R5012, YTHX9321R1000, YTHX9321R1011, YTH6320R1015, YTH6320R1001,YTH5320R1017 and YTH5320R1000             […]


The VisionPRO IAQ has a feature in the installation menu, menu # 346,that is a “Duel Fuel Heat Pump Upstage to Furnace Timer”.  This feature allows you to enter a time from 30 minutes to 75 minutes that you want the heat pump to run before brining on the auxiliary heat.  This feature is only […]