Operation Limits; Figure 16 - External Pressure Head Of Water Pump; Figure 17 - Operating Limits On Ewyt_Cz In Cooling Mode; Table 11 - Pump Curves Associated With Each Unit Size - Daikin EWYT021CZI-A1 Installation And Maintenance Manual

EWYT-CZP – Pump Low lift
External static pressure refers to the difference between pump external static pressure and evaporator and water
filter pressure drop. Water flow range refer to pump only. For water flow limits of the unit refer to water flow
section.

4.13. Operation limits

Operation out of the mentioned limits may damage the unit. In case of any doubt contact the manufacturer representative.
In the following figure are illustrated the operation ranges both in cooling and heating mode, in terms of Leaving water
temperature (LWT) and Ambient temperature (OAT).
OAT Outside ambient temperature
ELWT Evaporator Leaving water temperature
OPERATION RANGE COOLING – EWYT_CZ
EWYT021~064-CZ
Figure 16 – External pressure head of water pump
Pump Curves
Model
EWYT021CZI-A1
EWYT032CZI-A1
EWYT040CZI-A1
EWYT064CZI-A2
Table 11 – Pump curves associated with each unit size
Figure 17 – Operating limits on EWYT_CZ in cooling mode
Pump curve
A
B
B
C
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