York T2GY, Installer'S Manual

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T2GY INSTALLER’S GUIDE
Check One
Start up/Check-out for new installation
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Troubleshooting Problem:___________________________________
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1. FLOW RATE IN GPM (SOURCE SIDE HEAT EXCHANGER)
Water In Pressure: a.______ PSI
Water Out Pressure: b.______ PSI
Pressure Drop = a - b c.______ PSI
Convert Pressure Drop to Flow Rate
(refer to Pressure Drop table) d.______ GPM
2. TEMPERATURE RISE OR DROP ACROSS SOURCE SIDE HEAT EXCHANGER
COOLING HEATING
Water In Temperature: e.______ °F e.______ °F
Water Out Temperature: f. ______ °F f. ______ °F
Temperature Difference: g.______ °F g.______ °F
3. TEMPERATURE RISE OR DROP ACROSS AIR COIL
COOLING HEATING
Supply Air Temperature: h.______ °F h.______ °F
Return Air Temperature: i. ______ °F i. ______ °F
Temperature Difference: j. ______ °F j. ______ °F
4. HEAT OF REJECTION (HR) / HEAT OF EXTRACTION (HE) CALCULATION
HR or HE = Flow Rate x Temperature Difference x Brine Factor*
d. (above) x g. (above) x 485 for Methanol or Environol, 500 for water*
Heat of Extraction (Heating Mode) =
btu/hr
Heat of Rejection (Cooling Mode) = btu/hr
Compare results to Capacity Data Tables
Note: Steps 5 through 8 need only be completed if a problem is suspected
5. WATTS
COOLING
COOLING
HEATING HYDRONIC
Volts: m._____
VOLTS
m.______
VOLTS
m. ______
VOLTS
Total Amps (Comp. + Fan): n. _____
AMPS
n. ______
AMPS
n. ______
AMPS
Watts = m. x n. x 0.85 o. _____
WATTS
o. ______
WATTS
o. ______
WATTS
6. CAPACITY
Cooling Capacity = HR. - (o. x 3.413) p . _____ btu/hr
Heating Capacity= HE. + (o. x 3.413) p . _____ btu/hr
7. EFFICIENCY
Cooling EER = p. / o. q . _____ EER
Heating COP = p. / (o. x 3.413) q . _____ COP
8. SUPERHEAT (S.H.) / SUBCOOLING (S.C.)
HEATING HYDRONIC
Suction Pressure:
r. ______ PSI r. ______ PSI r. ______ PSI
Suction Saturation Temperature:
s. ______ °F s. ______ °F s. ______ °F
Suction Line Temperature:
t. ______ °F t. ______ °F t. ______ °F
Superheat = t. - s.
u. _____ °F u. ______ °F u. ______ °F
Head Pressure:
v. ______ PSI v. ______ PSI v. ______ PSI
High Pressure Saturation Temp.:
w. _____ °F w. _____ °F w. _____ °F
Liquid Line Temperature*:
x. ______ °F x. ______ °F x. ______ °F
Subcooling = w. - x.
y. ______ °F y. ______ °F y. ______ °F
* Note: Liquid line is between the source coax and the expansion valve in the cooling mode; between the air
coil and the expansion valve in the heating mode; between hot water (load) coax and txv in hot water mode.
Company Name: _________________________________
Technician Name: ________________________________
Model No: ______________________________________
Owner’s Name: __________________________________
Installation Address: ______________________________ Company Phone No: ______________________________
Date: __________________________________________
Serial No:_______________________________________
Open or Closed Loop: _____________________________
Installation Date: _________________________________
Startup and Troubleshooting Form