Climatic Curves; Pre-Set Curves - Carrier 30AWH004HB Service Manual

Code Nr. Name
EXTERNAL HEAT
154
SOURCE STATUS
MAIN WATER PUMP
155
LOGIC VS EHS STATUS
TRACE HEATER / ADDI-
156
TIONAL WP LOGIC
ADDITIONAL WATER
157
PUMP LOGIC
DELTA AIR
158
SET-POINT
302 UNIT CONFIGURATION

7.3.5 Climatic curves

Pre-set curves

Twelve heating curves and two cooling curves are available by accessing
to parameters 112 and 117 respectively of installer configuration table.
SM_30AW.indd 99
DESCRIPTION
This code is use to define the external heat source status when
EHS is activated and OAT < temperature value set in Code 148:
0. Always On
perature set-point(same hysteresis of Thermostat function). In
depending by water set-point (+1/-4 °C of hysteresis)
This code is use to define the water pump logic when EHS is
activated and OAT < (temperature value set in Code 148):
2. Always On
This code is use to select the output connected at PIN 11 on
terminal strip. In case an additional water pump option is active,
this code is use to select its operating logic vs the SHW request (if
OAT > (temperature value set in Code 148)).
0. Trace he
pump logic. This it means that in case of SHW activation, the
additional WP will be ON.
pump logic, but always OFF when SHW is activated.
This code is use to define the additional water pump logic, if it
has been installed, when OAT < temperature value set in Code
148:
2. Always On
This code is use to define the hysteresis versus the temperature
installed and used as Thermostat (100 NUI code = 4).
This code is use to configure the unit:
Cooling Only
1. Heat & Cooling
2. Heating Only
Carrier interfaces
VALUE RANGE
Min
-
0
0
0
0
0.2°C
0.
0
The curves are set to maintain a target indoor temperature of 20°C.
99
7
STANDARD
Max
2 1
2 1
2 1
2 2
1°C 0.3 °C
2 1
30AW
14-03-2011 14:46:23