TTHERM GEO TVA series, Инструкция по установке и эксплуатации

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12/06/2012 39 GI202
The G CFM also has a fine tune or tweak 4-position dial switch, the same 0%, -6%, +6%, +12%.
The G CFM tweak switch is located directly below the Y1 & Y2 tweak switch
Note: This table is to show example calculations for G
Model Size 0% -6% +6% +12%
TVT – 024 390 365 415 435
TVT – 036 515 485 545 575
TVT – 042 595 560 630 665
TVT – 048 660 620 700 740
TVT – 060 825 775 875 925
CFM Rounded
Heat or cool mode determines where the dial set percentage is applied. Power down/up is required after the
model size dial switch, but the two tweak dial switches can be changed at any time.
High and Low Pressure Switches
– The heat pump is equipped with both high and low pressure switches that
shut the unit off if the refrigerant pressure exceeds 550 PSI or goes below 40 PSI.
Do not reset a system in the
heating mode without first verifying water flow.
WARNING
DO NOT RESET THE SYSTEM MORE THAN ONCE –
REPEATED RESETTING OF THE LOCKOUT CAN
CAUSE SERIOUS DAMAGE.
IF A REPEAT LOCKOUT OCCURS CONTACT YOUR SERVICE DEALER
IMMEDIATELY.
Pressure Switch Settings
Pressure
Switch
Cut – Out
Pressure
Cut – In
Pressure
Fault Code LED
Low Pressure 40 PSI 65 PSI Low Pressure ON Solid
High Pressure 550 PSI 420 PSI Hi Pressure ON Solid
Open Loop Freeze Protection
Open loop freeze protection is accomplished by monitoring the LWT and Source Water Flow.
If the LWT drops below 36° F the GEO Logic controller will de-energize the compressor and establish a LWT
low temp Warning. The GEO Logic controller will continue to cycle on LWT soft lockout until the condition is
corrected.
The flow switch has a bypass timer in which the GEO Logic board will ignore an open flow switch for the first
15 seconds. If the flow switch opens the GEO Logic controller will de-energize the compressor and initiate a
single soft lockout. If the GEO Logic controller experiences a second flow switch fault during a single
thermostat call period, it will hard lock out the compressor.
A manual reset of power will be required to reset any hard lockout condition.
WARNING
IF THE TTHERM GEO HEAT PUMP IS IN A HARD LOCKOUT WITH THE EARTH LOOP FLOW/ SOURCE
WATER LED ON SOLID, DO NOT RESET THE POWER TO THIS HEAT PUMP UNTIL EARTH LOOP FLOW
HAS BEEN ESTABLISHED. IF THE COMPRESSOR IS OPERATED IN HEATING MODE WITHOUT WATER
FLOW, THE EARTH LOOP HEAT EXCHANGER COULD FREEZE RUPTURE.
FREEZE RUPTURE IS NOT COVERED UNDER WARRANTY.