73
Monobloc Outdoor Unit Installation Manual
10.8 Pump configuration:
There are a number of possible configurations of the hydraulic circuit:
•
Unit with hydronic module (internal main pump included)
•
Unit without hydronic module. An external pump is necessary
•
If a secondary hydraulic loop is used, this will have its own additional pump
Different
configurations with
pump
Internal main pump (option)
External main pump
(not supplied)
Additional pump
(not supplied)
Fixed speed
pump
Variable speed pump
Fixed speed pump
Fixed speed pump
Adjustable
speed
ΔT
Internal main pump
X
P
External main pump
X
P
Header / Follower
Installation
P
P
X
X
P
(connected on header
unit)
For external main pump and additional pump, the discrete output can control a contactor (not supplied with unit).
Characteristics
Contactor Coil:
230 VAC
50Hz
Electrical connection
Refer to Installation with DHW production and boiler example
Configuration
Refer to Installation with DHW production and boiler example
CAUTION:
The installer is responsible for ensuring the protection of any additional pump against the low water flow
rate (no flow switch can be managed by unit control).
The management of different states of main pump (ON / OFF) is different according to the kind of installation
(options, accessories, applications). In the compatibility table below, the different control logics for main pump are
presented in function of installation:
Different control logic for main pump:
Main Pump Logic [P565]
No RC
Wired RC
OFF Mode
Cooling / Heating Mode
Boiler
Satisfied Demand
Demand
On
Off
Always On
P
P
Off
On
On
Off
N.A.
Water Sampling
P
N.A.
Off
Off (On for sampling)
On
Off
N.A.
According to Space Temp
N.A.
P
Off
According to IAT vs Air
Setpoint
On
Off
N.A.
The management of different states of additional pump (ON / OFF) is different according to the kind of installation
(options, accessories, applications). In the compatibility table below, the different control logics for additional pump
are presented in function of installation:
Additional Pump Logic [P573]
No RC
Wired
RC
OFF
Mode
Cooling / Heating Mode
Boiler
DHW
Satisfied Demand
Demand
On
Off
Active Inactive
No additional pump
P
P
Off
Off
Off
Off
N.A.
N.A.
N.A.
Always On
P
P
Off
On
On
On
N.A.
N.A.
N.A.
According to Space Temp
N.A.
P
Off
According to IAT vs Air
Setpoint
On
On
N.A.
N.A.
N.A.
Always On, but Off when DHW activated
P
P
Off
On
On
On
N.A.
Off
N.A.
According to Space Temp, but Off when
DHW activated
N.A.
P
Off
According to IAT vs Air
Setpoint
On
On
N.A.
Off
N.A.
