IBC HC 20-125 User Manual

INSTALLATION AND OPERATION INSTRUCTIONS
2-4
HC SERIES BOILERS HC 13-50, HC 23-84, HC 29-106, HC 33-124, HC 20-125, HC 33-160
2.3.4 Table of Programmable Parameters
PARA-METER DESCRIPTION DEFAULT RANGE / OPTIONS
USER SET UP
Boiler Supply Temperature 180°F (82°C) 86°F (30°C) to 194°F (90°C)
Tankless Domestic Hot Water
Temperature
120°F (49°C) 104°F (40°C) to 149°F (65°C)
15 - INSTALLER SET UP MENU
1 System Type
(SEE CHART ON PAGE 2-6 FOR
ADDITIONAL DETAILS)
DC series = 0
HC series = 3
DC - 0 – Both Space Heating and Tankless DHW
HC - 1 – Space Heating and Indirect DHW
Tank. DHW must be turned on by pressing the
Tap twice. Bottom LED must be ON.
DC - 2 – Tankless DHW Only
HC - 3 – Space Heating Only
DC - 4 – Space Heating and Tankless DHW
with a Storage Tank. DHW must be turned on by
pressing the Tap twice. Bottom LED must
be ON.
DC - 5 – Tankless DHW with a Storage Tank
Only. DHW must be turned on by pressing the
Tap twice. Bottom LED must be ON.
DC – 6 – Space Heating, Indirect DHW Tank and
Tankless DHW
5 Min Heating Curve Supply Water
Temp
90°F (32°C) 50°F (10°C) to 194°F (90°C)
Must be at least 18°F (10°C) lower than
Parameter “5.”
5. Max Heating Supply Water Temp 194°F (90°C) Range 86°F (30°C) to 194°F (90°C)
6 Min Outdoor Design Temp 14°F (-10°C) Range to -22°F (-30°C) to 55°F (13°C)
7 Summer Shut Down Temperature 64°F (18°C) Range 59°F (15°C) to 86°F(30°C)
Pump and burner will not operate if the Outdoor
Temperature is above this setting
8 Internal Boiler Pump Post Purge 1 min Range 0 min to 15 min
9 External DHW Pump Post Purge 1 min Range 0 min to 15 min
L Indirect Tank Temperature if using
a sensor. Note: Use only IBC
10KΩ Sensor
140°F (60°C)
Fixed tank differential
of 9°F (5°C) below
the set-point, must
use an IBC 10KΩ
tank sensor
104°F - 149°F (40°C – 65°C)
L. Tankless DHW with Storage
Tank offset temperature (Boiler
operates at the Tankless Domestic
Hot Water Temperature setting
plus this offset temperature to
efciently generate DHW)
18°F (10°C) 2°F – 27°F (1°C – 15°C)
Fixed tank differential of 9°F (5°C) below the set-
point, must use an IBC 10KΩ tank sensor.
n Boiler Water Supply Temp for
heating Indirect DHW Tank
170°F (77°C) Range 149°F (65°C) to 194°F (90°C)
n. Comfort and ECO Comfort Mode:
Heat exchanger temperature
maintained while in standby
110°F (43°C) Range 0 or 104°F – 149°F (40°C – 65°C)
NOTE: If set to 0 then the temperature will be
the same as the temperature set for the Tankless
DHW in the user menu.
NOTE: The control displays codes that include upper and lower case letter and a combination with a period after the letter.
Example: C, c., c are all valid parameter codes. When adjusting settings, double check that you are in the correct parameter.

IBC HC 20-125 Specifications

General

Brand	IBC
Model	HC 20-125
Category	Boiler
Language	English