CPU-0500: ORC with injection pump mixing.

CPU-0500 Control
Quick & Easy
Start-Up Guide
Outdoor reset control with injection pump mixing and modulating boiler.
THM-0100
Outdoor
Sensor
ROOM
76.0
OFF
°F
TARGET
85°F
Boiler
Sensor
Low Temp
Sensor
Injection
Pump
Low Temp
Pump
Heat Load
Boiler
Pump
HBX
2A
1
Thermostat
THM-0100
DO NOT
CONNECT
POWER HERE
2
3
4
5
6
RL RL
TH TH
24V AC
1
2
2
1
3
2
DO NOT
CONNECT
POWER
HERE
1
DS
1
Central Processing Unit
CPU-0500
HBX
2
1
3
DS
2
4-20mA
1-10v
+
-
2A
4
5
BL BL
1 1
Boiler
10 A
DO NOT
CONNECT
POWER
HERE
6 7
8
TM TM TM
2
3
1
10
9
1
11
12
120
L
N
GR
10 A
13
14
15
16
RL
RL
RL
RL
1
1
2
2
Low Temp
System Pump
Boiler
Modulating
Output
Boiler
Sensor
A
24 V AC
C
R
Injection Pump
Low Temp
System Sensor
Aquastat will raise
the water temp in
the boiler to DHW. It
will also give priority
if needed.
Outdoor
Sensor
L
120 V AC
N
Contact Information
4516-112th Avenue SE
Calgary, Alberta T2C 2K2
CANADA
Phone: +1(403) 720 0029
Fax: +1 (403) 720 0054
Email: info@hbxcontrols.com
Design Boiler Temperature
Minimum Modulation Percentage
This is the design boiler temperature. It is
used in the outdoor reset design calculation
and is also the maximum setting for the
boiler.
(50°F to 200°F) Default: 190°F
This setting is used to set the minimum
modulation level that the device can go
down to. It can also be used to set the
minimum positions on valves.
(10% to 60%) Default: 20%
Design Low Temperature System
Temperature
This is the design low temperature system
temperature. It is used in the outdoor reset
design calculation for the low temperature
reset curve.
(50°F to 190°F) Default: 135°F
Design Room Temperature
This is the design room temperature. It is
used in the outdoor reset design
calculation. Set it to the approximate
desired room temperature.
(50°F to 120°F) Default: 70°F
Design Outdoor Temperature
This is the design outdoor temperature. It is
used in the outdoor reset design
calculation. Set the maximum temperature
you would like the control to be at.
(-50°F to 150°F) Default: -10°F
Minimum Boiler Temperature
This is the minimum boiler temperature. This
setting will vary depending on the type of
boiler you are running. This is boiler supply
temperature so keep that in mind when
selecting this feature. If the minimum boiler
temperature is set to OFF then the boiler
demand will always be ON when a heat
demand is present.
(OFF / 51 °F to 200 °F)
Default: OFF
Minimum Low Temperature System
Temperature
Mixing Modulating Mode
When in Mixing mode this is the setting for
the steps between modulating up or down
on the device.
(1s to 300s) Default: 10s
Boiler Selection
This setting is used to select what boiler(s)
are connected to the control.
Selection Types:
MOD: Modulating Boiler
1: Single Stage ON/OFF Boiler
Default: 1.
DHW Priority
This setting is used to set the DHW priority. If
set to ON then the System Pump will shut off
when there is a DHW call. The priority time is
60 minutes. In Mixing mode the injection
device will shut off in a priority situation.
(ON/OFF Default: OFF
Heat Demand
1) ON: This setting indicates that the
CPU-0500 is in a permanent heat demand.
Use instead of attaching a thermostat.
2) OFF
(ON/OFF) Default: OFF
Celsius & Fahrenheit
Use this setting to change the display format
from °C to °F.
(°C/°F) Default: °F
This is the minimum system temperature. Set
this temperature to the minimum
temperature you would like to see in the low
temperature system loop.
(40°F to 190°F) Default: 70°F
Mixing Type
Warm Weather Shut Down (WWSD)
This setting is used to set the temperature at
which the CPU-0500 will go into WWSD.
Above this temperature the system will be
shut off.
(20°F to 150°F) Default: 75°F
DHW Boiler Setpoint
This setting is used to set the desired boiler
setpoint when there is a DHW demand. This
can be triggered from an aquastat.
(50°F to 200°F) Default: 180°F
When mixing, this can only be
triggered by an aquastat.
Outlined fields indicate a mandatory set up.
This setting is used to select your Mixing type.
In: PMIp Injection Pump
MO: Modulating Output (4-20mA or
1-10vDC)
FL: Floating action valve (power open /
power close)
Default: In