I.2.2
MACHINE IDENTIFICATION
The units feature a serial number plate loc ated on the side which
includes machine identific ation data.
I.3
CONDITIONS OF USE
TCHEY units are monobloc air cooled water chillers with water-cooled
condens ation.
THHEY units are pac kaged heat-pumps with reversible refrigerant c ycle
and water evaporati on/c ondensati on.
They ar e suitable in air c onditioning ins tallations where it is nec essar y
chilled water (TCHEY) or chilled and hot water (THHEY), not for human
consumption.
The units ar e designed for indoor installation.
The units c omply with the following directi ves:
○ 2006/42/CE M achinery Directive;
○ Low voltage Directi ve 2006/95/C E;
○ Electromagnetic compatibility directi ve 2004/108/C E;
○ Pressure equipment directi ve 97/23/EEC (PED);
DANGER !
The mach ine has been designed and constru cted
solely and exclusively to function as an air-cooled
water chiller or as a water-cooled h eat pump: an y
other use is expressly PROHIBITED.
The installation of the machine in an explo sive
environment is prohibited.
DANGER !
The mach ine is designed for indoor installation.
Segreg ate the unit if in stalled in areas accessible to
persons under 14 year s of ag e. If outdoor
installation is r equired , it will necessitat e
modifications wh ich mu st be evaluated b y our
technical office.
IMPORTANT !
The unit will only function corr ectly if the
instructions for use ar e scrupulously follo wed, if
the specified clearan ces ar e comp lied with during
installation and if the operating restrictions
indicated in this m anual are strictly adh ered to.
I.3.1
OPERATING LIMITS
TCHEY-THHEY 105÷112
52
50
45
40
35
(*) 30
-6
T (°C) = Condenser outlet water temperatur e
t (°C) = Evaporator outlet temperatur e
(*) Only the water output on the r ejection side, wor king with
well/aqueduct water, c an drop to 24°C. Contact the pre-s ales office for
such c onditi ons.
Maxi mum inlet water temperature evaporator28°C
Maxi mum inlet water temperature condens er 47°C
○ Minimum water pressur e 0,5 Barg
○ Maxi mum water press ure 6 Barg.
Temperature differentials p ermitted through the exchangers
○ Temperature differential at the evaporator ΔT = 3 ÷ 8°C
○ Temperature differential at the c ondenser : ΔT = 5 ÷ 15°C
○ Temperature differential at the c ondenser (city water ): ΔT = 12÷18°C.
W ARNING!
○ Water at the inlet to the condens er at l ess than 25°C and ΔT less
than 12°C, it is advisable to ins tall the pressos tatic valve accessor y (VP
or VPS).
○ When the water at the i nlet to the condenser is less than 15°C (the
temperature differ ential ∆T per mitted for city water through the
condens er is inclusi ve i n the range 12 ÷ 18°C) it is advisable to install
the pressos tatic valve accessor y (VP or VPS).
IMPORTANT !
For evaporator outlet water of a temp erature belo w
5°C, please contact the RHOSS S.p.A. pr e-sales
service before ord ering.
25
SECTION I: USER
0
2 5
12 15
20 23