IDEAL EXRKIT52 Gebrauchs- und Pflegehandbuch
Exalt
Control & Display Module Replacement
1
WARNING
!
Indicates a potentially hazardous situation which,
if ignored, can result in serious injury or substan-
tial property damage.
NOTICE
Indicates special instructions on installation, operation
or maintenance, which are important to equipment
but not related to personal injury hazards.
WARNING
!
For your safety, turn off electrical power supply
at service panel and allow unit to cool before pro-
ceeding to avoid possible electrical shock and
scald hazard. Failure to do so can cause severe
personal injury or death.
WARNING
!
Failure to follow instructions below can result in
severe personal injury or damage if ignored.
• Instructions are for a qualified installer/ ser-
vice technician only.
• Read all instructions before proceeding.
• Follow instructions in proper order.
Kit Part Number Description Model
EXRKIT52 Control Module Replacement
Display Module Replacement All Exalt Models
Each Kit Includes:
• Control Module
• Display Module with cover
Recommended Tools:
• Phillips Head Screwdriver
2019-66 Exalt Control Module Replacement
Revised 7/29/2021
2
1. Preliminary Instructions
1. Verify that the replacement kit is correct for the
model of boiler. See table on page 1.
2. Carefully open and unpack the PARTS BOX from its
shipping carton.
3. Carefully remove and check for any damage.
NOTICE
Installing a damaged equipment will cause malfunction
of the boiler. Contact IdeaUSA right away if the control
module is damaged in any way.
4. Close the manual gas shut off valve to the unit.
2. Save Settings
NOTICE
Prior to replacing the control module and/or display module,
it is important to access and document the boiler’s settings.
This will ensure any settings revised from factory defaults are
transferred to the new module(s). Use Table 1 to record the
existing settings. Do not revise any settings when recording
settings.
1. To access the Installer screen, touching simultane-
ously the up and down soft keys for 3 seconds as
shown in Fig. 1.
Fig. 1: Installer Button
2. Enter the installer access code “054” by using the
LEFT and RIGHT buttons to select a digit and the
UP and DOWN buttons to change the digit. Press
the OK button to enter the access code.
Fig. 2: Installer Access Code
3. Press the OK button while the CH & DHW Settings
icon is highlighted.
Fig. 3: CH & DHW Settings
4. Press the OK button while the CH Settings icon is
highlighted.
Fig. 4: CH Settings
5. Press the UP and DOWN buttons to scroll thru the
various settings.
Fig. 5: Heating Settings
Exalt
Control & Display Module Replacement
3
6. Record all CH Settings in Table 1. Once completed,
press the RIGHT button to highlight the Previous
Screen icon, then press the OK button.
7. Press the RIGHT button to highlight the DHW Set-
tings icon then press the OK button.
Fig. 6: DHW Settings
8. Press the UP and DOWN buttons to scroll thru the
various settings and record all DHW Settings in Ta-
ble 1. Once completed, press the RIGHT button to
highlight the Previous Screen icon, then press the
OK button.
Fig. 7: DHW Settings
9. Press the DOWN button to highlight the Boiler Set-
tings icon if present icon, then press the OK button.
10. Press the UP and DOWN buttons to scroll through
the various settings and record all Boiler Settings
in Table 1. Once completed, press the RIGHT but-
ton to highlight the Previous Screen icon, then
press the OK button.
NOTICE
Perform the following steps if the Exalt is part of a Cascade
System or the System Temperature Sensor is being used on
a single Exalt.
11. Press the RIGHT then DOWN buttons to highlight
the Previous Screen icon, then press the OK button.
12. Press the RIGHT then DOWN buttons to highlight
the Cascade icon, then press the OK button.
13. Press the RIGHT button to highlight the Cascade
Settings icon, then press the OK button.
14. Press the UP and DOWN buttons to scroll thru the
various settings, and record all Cascade Settings in
Table 1.
3. Remove Control Module
1. Turn the electrical power“OFF”.
2. Remove the front jacket panel by removing the
screws on panel. Pull the panel out and up to re-
move the panel. Do not discard these screws as
they will be reused.
3. Remove the screw holding the metal shipping
bracket in place as shown in Fig. 8
Shipping
Bracket
Screw
Shipping
Bracket
Control
Module
Cover
Control
Module
Retaining Tab
Fig. 8: Control Module
4. The shipping bracket and screw can be discarded.
5. Pull the retaining tab on top of the control module
case to remove the cover.
6. Record the current location of all plugs.
7. Remove all Molex wiring connectors from the
Control Module. Some plugs are equipped with a
locking clip. Squeeze the clip to unlock the plug.
Support Control Module with one hand while re-
moving individual Molex connectors. Press tabs on
Molex plugs for quick release.
8. Unclip the 1 clip on the side of the control module
Exalt
Control & Display Module Replacement
4
and pull the module out.
4. Installation of Control Module
1. Mount the control module into the case by secure-
ing it behind the mounting clips on both sides of
the case.
2. Reconnect the Molex connectors to proper posi-
tion. Each connector is designed to fit only in its re-
spective mating connector. If the plug is equipped
with a locking clip, ensure the clip is engaged.
3. Place the cover in place and lock in the top retain-
ing tab.
4. Remount the front jacket panel to the boiler.
5. Turn power to the unit “ON” and return the boiler
to service.
5. Replace Display Module
1. Pull the retaining clip on top of the enclosure and
pull the front cover off.
2. Disconnect the yellow cables by squeezing the clip
on the back of the plug in and pulling firmly out
from the back of the display module. Use care not
to damage the plug.
3. Remove the rubber grommet holdind the yellow
cables from the old display ensloure.
4. Install the rubber grommet with the yellow cables
onto one of the tabs in the bottom of the new dis-
play ensloure.
5. Reconnect the yellow cables by pushing the plug
into the terminal. The clip on the back of the plug
will lock the plug into place. Use care not to dam-
age the cable or display module.
6. Close the front cover onto the back cover by
insert-ing the two tabs on the bottom of the front
cover into the appriopriate holes in the back cover
and close, engaging the tab in the top. Give the
cover a light tug to make sure the top retaining
clip is tight.
Exalt
Control & Display Module Replacement
Fig. 9: Display Module
The display module comes preinstalled in the front red dis-
play enclosure as shown in Fig. 8.
NOTICE
5
4. Programming new Control and DIsplau Board
1. Follow the instructions in step 2 to gain access to
the installer menu.
2. Go to boiler settings and click appliance setting, as
seen in Fig. 10 and Fig. 11.
Fig. 10: Installer Menu
Fig. 11: Appliance setting
3. The required code is written on the data plate lo-
cated at the side of the boiler. Use the code for the
gas type, either Natural Gas or Propane.
4. Increase/decrease the value (from 0 to 9, then A to
Z) using the UP or DOWN keys to, then change po-
sition with the LEFT or RIGHT keys.
5. Follow the instructions on the screen to enter the
appliance code for your boiler.
6. The boiler will now be factory set for that particular
model. Return to step 2 and enter settings record-
ed in Table 1 back into the controls to return the
boiler to the customized settings of the old control.
7. Return to step 2 and enter settings recorded in Ta-
ble 1 back into the controls.
Exalt
Control & Display Module Replacement
6
Table 1: Controls Settings
HEATINGSETTING FACTORYDEFAULT MINIMUMSETTING MAXIMUMSETTING EXISTINGSETTING
Heating Operation Enabled
Demand Type Thermostat & Outd.
Curve
Absolute Max CH Setpoint 185°F [85°C] 68°F [20°C] 188°F [87°C]
CH1 Maximum Setpoint 180°F [82°C] 68°F [20°C] 188°F [87°C]
CH1 Minimum Setpoint 80°F [27°C] 60°F [15°C] 188°F [87°C]
Outdoor Curve Coldest Day 10°F [-12°C] -30°F [-34°C] 50°F [10°C]
Outdoor Curve Warmest Day 64°F [18°C] 60°F [15°C] 78°F [25°C]
CH2 Circuit Enabled
CH2 Maximum Setpoint 140°F [60°C] 68°F [20°C] 194°F [90°C]
CH2 Minimum Setpoint 80°F [27°C] 60°F [15°C] 190°F [88°C]
Warm Weather Shutdown O O 78°F [25°C]
Circulation Pump
Permanent
Disabled
CH Post Pump Time 5 Minutes O 20 Minutes
Freeze Protection Enabled
Frost Protection Setpoint -22°F [-30°C] -22°F [-30°C] 50°F [10°C]
Parallel Shift Value 0°F [0°C] 0°F [0°C] 144°F [80°C]
CH Call Blocking 2 Minutes 0 Minutes 30 Minutes
DOMESTICSETTING SOLO
FACTORY
DEFAULT
COMBI
FACTORY
DEFAULT
MINIMUM
SETTING
MAXIMUM
SETTING
EXISTING
SETTING
DHW Operation Enabled Enabled
Demand Type Thermostat N/A
DHW Boiler Setpoint 168°F [76°C] 168°F [76°C] 96°F [35°C] 188°F [87°C]
DHW Setpoint 140°F [60°C] 140°F [60°C] 68°F [20°C] 168F [75°C]
DHW Warmstart Setpoint N/A 125°F [52°C] 86°F [30°C] 140°F [60°C]
DHW Warmstart Hysteresis N/A 30°F [17K] 9K 36K
DHW On Dierential 6°F [3°C] N/A 4°F [2°C] 18°F [10°C]
DHW Storage Adder 27°F [15°C] 18°F [10°C] 10°F [5°C] 54°F [30°C]
DHW Post Pump Time 2 Minutes 2 Minutes O 30 Minutes
DHW Priority Timeout O O O 120 Minutes
DHW Priority Enabled Enabled
DHW Call Blocking 1 Minute 1 Minute 0 Minute 30 Minutes
DHW to CH Call Blocking 1 Minute 1 Minute 0 Minute 30 Minutes
Antilegionella Function Disabled Enabled
Exalt
Control & Display Module Replacement
7
Table 1 Cont:
BOILERSETTING FACTORYDEFAULT MINIMUMSETTING MAXIMUMSETTING EXISTINGSETTING
Lockout Temp. 210°F [99°C]
Modbus Address 0=BCST 0=BCST 247
Flex. Relay 1(CH) CH1
Flex. Relay 2(DHW) DHW
Flex. Relay 3(P3) CH1/CH2/DHW
Flex. Relay 4(ERR) ERROR
Flex. Relay 5(Flame) FLAME
Flex. Relay 6(P4) CH2
Error Relay On Lockout, Blocking
andWarning
Pump PWM Minimum 30% 1% 100%
Ignition Level Varies by model
Mix Zone High Limit 114°F [45°C] 68°F [20°C] 176°F [80°C]
Appliance Setting Varies by model
Altitude Setting 0 ft 0 ft 20,000 ft
Exalt
Control & Display Module Replacement
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