Raypak 503A Installation & Operating Instructions Manual page 38

Item Application
All
BOILER 1
H MODE 1,2,3
TARGET
WH
TANK SETP
WH
TANK DIFF
H MODE 1,2,3
MODE
H MODE 1,2,3
SETPOINT
H MODE 1,2,3
OUT START
H MODE 1,2,3
OUT DESIGN
H MODE 1,2,3
Boil START
H MODE 1,2,3
Boil DESIGN
All
Boil MASS
H MODE 1,2,3
TARGET MAX
H MODE 1,2,3
TARGET MIN
H MODE 1,2,3
TARGET DIFF
H MODE 1,2,3
DHW SENSOR
H MODE 2,3
DHW DIFF
H MODE 2,3
IND SUPPLY
H MODE 2
DHW PRIORITY
H MODE 2,3
PRI OVR
All
BOIL PURGE
All
SYS PURGE
H MODE 1,2,3
WWSD
All
UNITS
All
MODBUS
All
ADDRESS
All
DATA TYPE
All
BAUD RATE
All
PARITY
Range Description
Enable or Disable the operation of boilers. 4 boiler range, 1 is
ON <> OFF
enabled by default
RSET <> SETP
RSET = Outdoor Reset, SETP =Setpoint
OFF, 50°F to 150°F
Tank set point temperature
2°F to 10°F
Tank Differential temperature
1,2,3
Piping and application configuration.
Boiler target temperature while a heat demand is present for set-
50°F to PIM™ value*
point operation
35°F to 85°F
Outdoor starting temperature - outdoor reset
-60°F to 45°F
Outdoor design temperature - outdoor reset
Starting boiler target temperature when the outdoor temperature
35°F to 150°F
is at outdoor start outdoor reset
Design boiler target temperature when the outdoor temperature is
70°F to 200°F
at outdoor design outdoor reset
1<>2<>3
Thermal mass of the boiler
100°F to PIM™ value*
Maximum target system temperature
OFF, 50°F to 190°F
Minimum target system temperature
2°F to 42°F
Differential for target system temperature
OFF <> ON
Selects whether a DHW sensor is used for indirect DHW tank
2°F to 10°F
Differential for the target indirect DHW tank temperature
OFF, 50°F to PIM™
Target boiler temperature for the DHW heat exchanger during
value*
indirect DHW operation
Selects whether or not Indirect DHW priority is active during indi-
OFF <> ON
rect DHW operation
Au, 0:10hr to 2:00hr
Sets the length of the indirect DHW priority override time
0:20min to 10:00min
Sets the length of the boiler pump post purge
OFF, 0:20min to
Sets the length of the system pump post purge
20:00min
40°F to 100°F
The system warm weather shutdown temperature outdoor reset
deg F <> deg C
Show units using icons in display
OFF<>MNTR<>
ModBus Operating Mode: Off, Monitor, Temp Control, Rate
TEMP<>RATE
Control
1 to 247
ModBus slave address
RTU <> ASCI
Modbus data type
2400<>9600<>19K2<>
57K6<>115K
NONE<>EVEN<>ODD
Table O: Setup/Adjust Menu
38
Default
ON
SETP
125°F
3
1
180°F
70°F
10°F
70°F
180°F
1
220°F
50°F
10°F
OFF
6°F
180°F
OFF
1:00hr
20 seconds
20 seconds
70°F
deg F
OFF
1
RTU
19K2
EVEN