Operating Limits - Hitecsa EQU-PF 233 Manual De Instalación, Uso Y Mantenimiento

I.4

OPERATING LIMITS

T (°C) = Air temperature (D.B.).
t (°C) = Temperature of the water produced.
o Minimum water pressure 0.5 Barg.
o Maximum water pressure 6 Barg.
o Maximum water pressure on recoveries and desuperheater 3 Barg.
In Summer mode:
Maximum water inlet temperature 20°C.
In Winter mode:
Minimum water inlet temperature 20°C.
Maximum water inlet temperature 47°C.
If the water inlet temperature to the condensers is lower than the permitted
values, it is recommended to use a three-way modulating valve to guarantee
the minimum water temperature required.
Operation with partialised cooling capacity.
Temperature differentials permitted through the exchangers
o Temperature differential at the evaporator ∆T = 3 ÷ 8°C (with all compressors on) for machines with a "Standard" set-up. The maximum and
minimum temperature differential for "Pump" and "Tank&Pump" machines is related to the performance of the pumps which always must be checked by
means of the selection software.
Nota bene: For t(°C) < 5°C use anti-freeze solutions (see "Use of anti-freeze solutions").
EQU-PF –EQUH-PF 233÷238 Models
In Summer mode
EQU-PF –EQUH-PF 245÷265 Models
In Summer mode
EQU-PF –EQUH-PF 270÷2160 Models
In Summer mode In Summer mode with BT accessory
EQU-PF - EQUH-PF 270÷2160 Models
6
SECTION I: USER
In Winter mode
In Winter mode
In Winter mode