Carrier 33AW-CS1 - Assigning Time Periods and Modes

9
Installation
152
AUXILIARY
HYSTERESIS
This code is use to set the hysteresis temperature
needed to activate the external heat source.
1°C 20°C 5°C
153
SANITARY HOT
WATER IN OFF
MODE
This code is use to dene if, when system mode is o,
the sanitary hot water logic can be activated:
12 1
1. Yes, SHW logic is always actives. If OAT < Par148,
Heat Pump will turn ON to produce SHW.
2. No, SHW logic can be activated only in Heat or Cool
mode. No SHW production when OAT < Par148.
154
EXTERNAL HEAT
SOURCE STATUS
This code is use to dene the external heat source status
when EHS is activated and OAT < temperature value set
in Code 148:
02 1
0. Always On
1. On/O depending by actual Room Temperature vs
room temperature set-point (same hysteresis of Ther-
mostat function). Incase of NUI is not installed or room
sensor unavailable, On/O depending by water set-point
(+1/-4 °C of hysteresis)
2. On/O depending by water set-point (+1/-4 °C of
hysteresis)
155
MAIN WATER PUMP
LOGIC VS EHS
STATUS
This code is use to dene the water pump logic when
EHS is activated and OAT < (temperature value set in
Code 148):
02 1
0. Always O
1. On/O depending by EHS On/O status
2. Always On
156
TRACE HEATER /
ADDITIONAL WP
LOGIC
This code is use to select the output connected at PIN
12 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).
02 1
0. Trace heater installed for the anti frost logic
1. Additional water pump On/O depending by main
water pump logic. This it means that in case of SHW
activation, the additional WP will be ON.
2. Additional water pump On/O depending by
main water pump logic, but always OFF when SHW is
activated.
157
ADDITIONAL WATER
PUMP LOGIC
This code is use to dene the additional water pump
logic, if it has been installed, when OAT < temperature
value set in Code 148:
02 2
0. Always O
1. On/O depending by EHS On/O status
2. Always On"
158
DELTA AIR
SET-POINT
This code is use to dene the hysteresis versus the
temperature room Set-Point to O the Unit when the
System Type is NUI installed and used as Thermostat
(100 NUI code = 4).
0.2°C 1°C 0.3 °C
The parameters which are read only and are not editable by user, Key pad lock (
) icon will be displayed on the screen for those
parameters.
At installation ll in the installer value if default value has been changed.
PARAMETER
NUMBER
FEATURE DESCRIPTION
VALUE
RANGE
STANDARD
Min Max
English
129H45_GB_print2.indd 9 05/10/11 10.42