TTHERM GEO TVA series, Инструкция по установке и эксплуатации

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12/06/2012 7 GI202
Duct System and Blower
Metal ductwork should be used, and flexible connectors are required for supply and return air duct connections.
All TVA & TVT THERM GEO units have flanges for connecting your supply plenum and return ductwork.
If the duct system is installed in an uninsulated space, the metal ductwork should be insulated on the outside to
prevent heat loss, absorb noise, and prevent condensation during cooling.
If the TTHERM GEO is connected to existing ductwork, the ductwork must have the capacity to handle the air
volume required to unload the heat pump. Undersized ductwork will cause noisy operation due to high air
velocity, and poor operating efficiencies. Check the Duct Sizing Chart provided.
The TTHERM GEO heat pumps use a variable speed ECM blower motor. The GEO Logic controller determines
the speed of the motor based on mode and operation sequence. The blower speed can be fine-tuned to each
installation with the tweak switches described below.
The blower will not operate properly if ductwork is not attached. The ductwork provides static pressure to give
the blower motor a load to work against. All blower compartment covers must be in place for the heat pump to
operate correctly.
TVT - Blower CFM – Two Stage Compressor
Model G Cool Y Heat Y Cool Y2 Heat Y2 Cool Y 2 Heat + W2 E
TVT – 024 390 640 735 850 980 980 680
TVT – 036 515 900 965 1200 1290 1380 960
TVT – 042 575 985 1080 1310 1440 1500 1050
TVT – 048 660 1125 1235 1500 1650 1725 1200
TVT – 060 825 1400 1545 1875 2060 2160 1500
CFM Rounded
Y2 can be field fine-tuned or tweaked with a 4 position switch. The 4 positions are 0%, -6%, +6%, +12%
G can be field fine-tuned or tweaked with a 4position switch. The 4 positions are 0%, -6%, +6%, +12%
See figure 8 for location of 4 position switch
TVA - Blower CFM – Single Stage Compressor
Model G Cool Y Heat Y Cool Y Heat + W2 E
TVA - 036 515 1200 1290 1380 960
TVA - 048 660 1500 1650 1725 1200
TVA - 060 825 1875 2060 2160 1500
CFM Rounded
Y can be field fine-tuned or tweaked with a 4 position switch. The 4 positions are 0%, -6%, +6%, +12%
G can be field fine-tuned or tweaked with a 4position switch. The 4 positions are 0%, -6%, +6%, +12%
See figure 8 for location of 4 position switch
The “Y” tweak switch is the 2
nd
switch below the 10 pin thermostat socket.
The “G” tweak switch is the 3
rd
switch below the 10 pin thermostat socket.
Be very sure the tweak switches are set in their position indents.