57
8-3.
Hydro Unit Control
7) Room temperature control with the thermostat
You can install a commercially available thermostat to control room temperature.
7-1) Installing the room temperature thermostat
• TCB-PCM03E optional PC board is required. Connect its connection cable to CN211 port on the PC board of the
hydro unit.
• Wiring to the main unit: connect the optional PC board TCB-PCM03E to the hydro unit after detaching the front
panel.
Thermostat for heating : Connect TCB-PCM03E between the terminals (1) and (3).
Thermostat for cooling : Connect TCB-PCM03E between the terminals (2) and (3).
• Place to install (inside a room): At the height of 120 cm-180 cm on a wall
Opposite to the radiator or fan coil installed
No assignment when floor heating is used on the room.
7-2) Room temperature thermostat control setting
• Setting of DPSW on the hydro unit :
DP_SW02_4=“ON” (Default “OFF”)
7-3)Heating thermostat operation
When the heating thermostat does not reach the assigned temperature (the circuit between (1) and (3) is closed),
heating starts under the setting that water temperature for heating is 40 °C (FC_9D). If the heating thermostat has not
reached the assigned temperature 30 minutes after heating had started, the water temperature setting is turned up 1
degree, and the same action will be repeated every 30 minutes until the thermostat reaches the assigned temperature.
The backup heater and booster heater are controlled in the same way as in the normal HP operation.
When the heating thermostat reaches the assigned temperature (the circuit between (1) and (3) is open), the heat
pump shifts to the “thermostat off” operation. During the operation, the water temperature setting is turned down by 1
degree every 30 minutes. The backup heater and booster heater are tuned off as the heat pump shifts to the
“thermostat off” operation.
7-4)Cooling thermostat operation
When the cooling thermostat does not reach the assigned temperature (the circuit between (2) and (3) is open),
cooling starts under the setting that water temperature fro cooling is 20 °C (FC_96). If the cooling thermostat has not
reached the assigned temperature 30 minutes after cooling had started, the water temperature setting is turned down
1 degree, and the same action will be repeated every 30 minutes until the thermostat reaches the assigned
temperature.
When the cooling thermostat reaches the assigned temperature (the circuit between (2) and (3) is closed), operation
shifts to the “thermostat off” operation. During the operation, the water temperature setting is turned up by 1 degree
every 30 minutes.
Related FC
Item
Operation flow and applicable data, etc.
PJ17
Terminal label
TCB-PCMO3E
CN210
Red
CN211
Black
Room thermostat
Correction control
Heating operation
Cooling operation
CLOSE
Setting is corrected
upward
Thermo on
The water temperature setting is turned
up by 1 degree every 30 minutes.
Thermo off
The water temperature setting is turned
up by 1 degree every 30 minutes.
OPEN
Setting is corrected
downward.
Thermo off
The water temperature setting is turned
down by 1 degree every 30 minutes.
Thermo on
The water temperature setting is turned
down by 1 degree every 30 minutes.
FC No.
Setting item
Default
Variable range
9D
Initial water temperature setting when controlling
heating by the room temperature remote controller and
room temperature thermostat.
40
20-60 °C
96
Initial water temperature setting when controlling
cooling by the room temperature remote controller and
room temperature thermostat.
20
10-25 °C
B5
Choose of the initial setting temperature.
Either use the temperature set in FC_9D, or use the
temperature calculated by Auto curve.
This applies heating operation only.
0
0 : Use the temperature
set in FC_9D
1 : Use the temperature
calculated by Auto curve
AMP Air Conditioning
www.ampair.co.uk | [email protected]
