AERCO Esteem Boiler with EZ-Set Controller - Manual (Page 170)

GF-135 Esteem 399 Low NOx Boiler
Chapter 18
OMM-0089_0A Installation, Operation & Maintenance Manual Controller Operation
Table 18-10: Holding Registers (Read/Write) - Continued
Address
DEC (HEX)
Supported
Commands
Description
Byte:
Format
Notes
514 (0x202)
0x03
0x06
0x10
CH Setpoint LB:U8
Value = CH Setpoint °C.
This register becomes active when 255
is written to register 512 (0x0200).
1280 (0x0500) 0x03
CH1 Maximum
Setpoint
LB:U8 Value = °C
1281 (0x0501) 0x03
DHW Storage
Setpoint
LB:U8 Value = °C
0 (0x0000) 0x04 Boiler Status LB: Flag8
Bit: Description
0: PC Manual Mode
1: DHW Mode
2: CH Mode
3: Freeze Protection Mode
4: Flame Present
5: CH(1) Pump
6: DHW Pump
7: System / CH2 Pump
0 = Off, 1 = On
1 (0x0001) 0x04 Lockout Status
MB:
Flag8
LB:U8
Bit: Description
1: Lockout Code Type
0 = Automatic Reset Lockout
1 = Manual Reset Lockout
Value = Lockout Code
2 (0x0002) 0x04 Lockout Status LB:U8
0 = Single / Master Boiler
1 = Slave 1
2 = Slave 2
3 = Slave 3
4 = Slave 4
5 = Slave 5
F = Single / Master Display
768 (0x0300) 0x04
Boiler Supply
Temperature
/System
Temperature
S16
Value = 0.1°C
Invalid Value = 32768 (0x8000).
Value is the Boiler Supply Temperature
unless the System Temperature
Sensor is installed.
769 (0x0301) 0x04
Boiler Return
Temperature
LB:S8
Value = °C.
Invalid Value = 65472 (0xFFC0).
770 (0x0302) 0x04
DHW Storage
Temperature
LB:S8
Value = °C.
Invalid Value = 32768 (0x8000).
771 (0x0303) 0x04
Boiler Flue
Temperature
LB:S8
Value = °C.
Invalid Value = 65472 (0xFFC0).
772 (0x0304) 0x04
Outdoor
Temperature
LB:S8
Value = °C.
Invalid Value = 32768 (0x8000).
773 (0x0305) 0x04 Future Use LB:U8
774 (0x0306) 0x04
Flame Ionization
Current
LB:U8 Value = Flame Current µA.
775 (0x0307) 0x04
Boiler / Cascade
Firing Rate
LB:U8 Value = Firing Rate %.
776 (0x0308) 0x04 Boiler Setpoint LB:U8
Value = °C.
Invalid Value = 32768 (0x8000).
Page 170 of 188 AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913 OMM-0089_0A
MC1 06/19/14 Ph.: 800-526-0288