Test Sheet; Water Side Measurements; Refrigerant Side Measurements; Electrical Measurements - Daikin EWYD-BZ Series Installation, Maintenance & Operation Manual

Test sheet

It is recommended that the following operation data are recorded periodically in order to verify the correct function of the
machine over the time. These data will also be extremely useful to the technicians who will be performing routine and/or
extraordinary maintenance on the machine.

Water side measurements

Mode
Chilled water setpoint
Leaving water temperature
Entering water temperature
Pressure drop
Water flow rate

Refrigerant side measurements

Circuit #1
Refrigerant/ Oils pressure
Refrigerant temperature
Circuit #2
Refrigerant/ Oils pressure
Refrigerant temperature
External air temperature

Electrical measurements

Analysis of the unit's voltage unbalance:
Phases:
Unbalance %:
Compressors current – Phases:
Compressor
Compressor
Fans current:
Compressor Load
N° of active Fans
N° of expansion valve cycles
Evaporation pressure
Condensation pressure
Oil pressure
Evaporation saturated temperature
Suction gas pressure
Suction superheating
Condensation saturated temperature
Discharge superheating
Liquid temperature
Subcooling
Compressor Load
N° of active Fans
N° of expansion valve cycles
Evaporation pressure
Condensation pressure
Oil pressure
Evaporation saturated temperature
Suction gas pressure
Suction superheating
Condensation saturated temperature
Discharge superheating
Liquid temperature
Subcooling
RS
_____ V

V V
MAX AVG  100 
V
AVG
R
#1 _____ A
#2 _____ A
#1 _____ A #2
#3 _____ A #4
#5 _____ A #6
#7 _____ A #8
Chiller
°C _________
°C _________
°C _________
kPa _________
3
m /h _________
ST RT
_____ V _____ V
_____ %
AVG = average
S
_____ A
_____ A
_____ A
_____ A
_____ A
_____ A
Heat pump
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T
_____ A
_____ A
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