Carrier AquaSnap 61AF 055 - Start-Up Checklist; Condenser Water Loop Checks; Pressure Drop and Flow Rate Checks; User Menu Configuration and Start-Up

16 - START-UP CHECKLIST FOR 61AF HEAT PUMPS (USE FOR JOB FILE)
Check condenser water loop
Water loop volume = ................... (litres)
Calculated volume = ................... (litres)
Proper loop volume established
Proper loop corrosion inhibitor included ...................................................litres of ..............
Proper loop freeze protection included (if required) ................................. litres of ..............
Water piping includes electric tape heater up to the condenser
Return water piping is equipped with a screen lter with a mesh size of 1.2 mm
Check pressure drop across the unit condenser (without hydraulic module) or the external static pressure (with hydraulic
module)
Entering condenser = ...................................................... (kPa)
Leaving condenser = ....................................................... (kPa)
Pressure drop (entering - leaving) = ................................ (kPa)
WARNING (unit without hydraulic module): Plot the pressure drop on the condenser ow/pressure drop curve to determine
the ow rate in l/s at the nominal operating conditions for the installation. For units with hydraulic module, a ow rate
indication is displayed by the unit control (consult the 61AF SmartVu
TM
control manual).
Flow rate from the pressure drop curve, l/s = .........................
Nominal ow rate, l/s = ............................................................
The ow rate in l/s is higher than the minimum unit ow rate
The ow rate in l/s corresponds to the specication of .......................(l/s)
Carry out the QUICK TEST function (see 61AF SmartVu
TM
control manual):
Check and log on to the user menu conguration
Load sequence selection .........................................................................................................................................................................
Capacity ramp loading selection..............................................................................................................................................................
Start-up delay ..........................................................................................................................................................................................
Burner section .........................................................................................................................................................................................
Pump control ...........................................................................................................................................................................................
Setpoint reset mode ................................................................................................................................................................................
Night-time capacity setback.....................................................................................................................................................................
Re-enter the setpoints (see controls section)
To start up the heat pump
WARNING: Be sure that all service valves are open, and that the pump is on before attempting to start this machine. Once
all checks have been made, start the unit in the “LOCAL ON” position.
Unit starts and operates properly
Temperatures and pressures
warning: Once the machine has been operating for a while and the temperatures and pressures have stabilized, record the
following:
BPHE entering water ...............................................................................................................................................................................
BPHE leaving water.................................................................................................................................................................................
Outside air temperature ..........................................................................................................................................................................
Suction pressure......................................................................................................................................................................................
Discharge pressure .................................................................................................................................................................................
Suction temperature ................................................................................................................................................................................
Discharge temperature ............................................................................................................................................................................
Liquid line temperature ............................................................................................................................................................................
notes: ......................................................................................................................................................................................................
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