Carrier 30RB-170R, Installation, Operation And Maintenance Instructions

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12.2.4.3 - Installation and hydraulic connection of the condenser
The unit is delivered with two temperature sensors and a flow rate controller which control the heat recovery.
The water flow controller is installed on the heat recovery unit water inlet and there is a sensor at the outlet. The water inlet sensor is
supplied with a maximum cable length of 15 metres which may be installed after the three-way valve (see diagram below).
It is recommended that the water inlet temperature sensor is placed as shown in the diagram below to guarantee optimal control of
the hot water temperature.
Note:
-
The water can be regulated on the water inlet or outlet. (See the control manual)
-
The installation of a three-way valve or a variable speed pump ensures optimum performance of the control whilst
protecting the compressors from very low water inlet temperatures.
//
//
LW_T
B
E
C D
K
K K
F
F F
F
F
I
J
H
L
M
N
O
G
EW_T
SP90F
Integrated in the unit
Actuation by controlling the unit if option 50 configured.
Insulation (integrated in the unit)
Components fitted on the unit Installation components (installation example)
B Heat recovery condenser F Shut-off valve
C Flow rate controller G Three-way valve (recommended and essential for low water inlet temperature)
D
Safety relief valve
H
Water inlet temperature sensor (supplied with the machine with 15 metres
of cable and a sensor pocket (contact paste to be added by the installer))
E Water outlet temperature sensor I Filter to protect the pump and the heat recovery condenser
J Heat recovery hydraulic circuit pump
K Water circuit bleed or charging valve
L
Safety relief valve
M Expansion tank
N Pressure gauge
O Hot water tank
12 - OPTIONS
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