Question about Honeywell Motorized Small Rectangular Hvac Damper
Posted by Anonymous on
Choose two colors of the thermostat wire, and connect them to the NO and COM and connect them to the zone control board leads for the zone intended. Almost all zone valves spring return open when deenergized. So ensure the zone valve is open with the system is off. At the base of zone valve there is a set screw that needs to engage the damper valve shaft in the open position with the motor in the spring release position. Most zone valve are 90 degree moment from full open to full shut. If you have a Carrier zone valve, they go full open to full shut in 45 degrees of motion. Your open stop need to be set so the valve stops in the full stop position.
To help understand the operation of a zone system, say you have 2 zone system and zone 1 thermostat initiates a heat or cool demand. Zone 2 valves energizes and shuts and zone 1 stays open and allow air to heat/ cool zone 1. If zone 2 thermostat simultaniously initiates the same heat/cool demand, the zone 2 valve opens and both zone heat/cool. When either thermostat is satisfied the opposite zone valve closes and when both thermostat are satisfied both zone valves open.
Hope this helps you understand zone operation. The same works for higher multizone systems.
Posted on Nov 08, 2014
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Posted on Jan 02, 2017
the normal wiring for stats is white=w=heat,red=r=24volts,green=g=fan,blue=c=common,yellow=y=cooling.
see what ties into your furnace board and match the terminals.
Posted on Aug 12, 2008
W- White (heat)
Y- Yellow (condenser)
G- Green (Indoor fan)
C- Blue (Common 24v)
R- Red (24VAC)
O/B (Only needed if system is a heat pump)
Posted on May 07, 2009
Hello,You forgot to wire the O terminal w1 witch is the reversing valve.It is important to check if old stat is using O or B in witch case B terminal=w1 leaving O unused.
Posted on Apr 21, 2010
T-stat wiring is commonly connected with the following color codes:
On a straight heat and cool system:
White = W on T-Stat
Yellow = Y on T-stat
Green = G on T-stat
Red = R on T-stat
On heat pump systems:
Blue = W2 on T-stat
There is no guarantee that your system is wired using this system so you will need to look in the furnace and see where the wires are connected to. You will have another set, probably 2 wires, going to your outside A/C unit. They are typically red and white but could be any color as long as they are hooked up to the same connections. I.E. blue on R at t-stat and to R on furnace would be OK, it just makes it harder to service the unit if you don't know what wire is for what.
Just check your furnace connections and connect the same wires to your t-stat no matter their colors.
Posted on Jun 14, 2011
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