Carrier AquaSnap 61AF 022 Installation, Operation And Maintenance Instructions page 42

High-temperature heat pumps

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16 - START-UP CHECKLIST FOR 61AF HEAT PUMPS (USE FOR JOB FILE)

Check condenser water loop

Water loop volume

Calculated volume

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 filter 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 = ......................................................

Leaving condenser = .......................................................

Pressure drop (entering - leaving) = ................................

WARNING (unit without hydraulic module): Plot the pressure drop on the condenser flow/pressure drop curve to determine

the flow rate in l/s at the nominal operating conditions for the installation. For units with hydraulic module, a flow rate

indication is displayed by the unit control (consult the 61AF SmartVu

Flow rate from the pressure drop curve, l/s = .........................

Nominal flow rate, l/s = ............................................................

The flow rate in l/s is higher than the minimum unit flow rate

The flow rate in l/s corresponds to the specification of ....................... (l/s)

Carry out the QUICK TEST function (see 61AF SmartVu

Check and log on to the user menu configuration

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: ......................................................................................................................................................................................................

.................................................................................................................................................................................................................

= ................... (litres)

(kPa)

control manual).

control manual):

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