TriangleTube Prestige Supplement - Type 5 MCBA User guide

WARNING
2008-12 Prestige Control Appl. Supl.
This document is intended to be used by a factory trained and qualified heating
contractor or service technician only.Read all instructions within this document
and within the PRESTIGE Boiler Installation and Maintenance Manual, before pro-
ceeding. It is recommended to follow the procedures in the steps given, skipping
or missing procedural steps could result in severe personal injury, death or sub-
stantial property damage.
prestige
Control Application
Supplement - Type 5 MCBA
Revised 5/29/2008

Table of Contents
i
Product and Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Operating Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Entering MCBA Access Code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Revising Application Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Domestic Hot Water (DHW) Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Domestic Hot Water Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-11
Central Heating (CH) Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Central Heating Applications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-23
Trouble Shooting Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Parameter Worksheet and Recorded Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Product and Safety Information
1
The following terms are used throughout this manual to
bring attention to the presence of potential hazards or to
important information concerning the product.
Indicates the presence of a hazardous situation
which, if ignored, will result in death, serious injury
or substantial property damage.
Indicates a potentially hazardous situation which, if
ignored, can result in death, serious injury or sub-
stantial property damage.
Indicates a potentially hazardous situation which, if
ignored, may result in minor injury or substantial
property damage.
Indicates special instructions on installation, opera-
tion or maintenance, which are important to the
equipment but not related to personal injury hazards.
Indicates recommendations made by Triangle Tube
for the installers which will help to ensure optimum
operation and longevity of the equipment.
BEST PRACTICES
NOTICE
CAUTION
WARNING
DANGER
DEFINITIONS
IMPORTANT INFORMATION - READ
BEFORE PROCEEDING
This document is intended to be used by a factory
trained and qualified heating contractor or service
technician only. Read all instructions within this doc-
ument and within the PRESTIGE Boiler Installation
and Maintenance Manual, before proceeding. It is
recommended to follow the procedures in the steps
given, skipping or missing procedural steps could
result in severe personal injury, death or substantial
property damage.
WARNING
Triangle Tube reserves the right to modify the technical specifications and components of its product without
prior notice.
NOTICE

2
OPERATING INFORMATION
The Prestige Boiler is controlled by the MCBA Control
Module, which is an electronic microprocessor controller.
The MCBA offers many control options, which may be
adjusted for various applications to achieve optimum
boiler efficiency and operation.
The MCBA Control Module has the ability to sense the
boiler supply and return water temperatures, the flue gas
temperature, the outdoor temperature, and the domestic
water temperature in a SMART/TR Series Indirect Water
Heater with the optional IDWH Sensor Kit PSRKIT22.
The MCBA uses this information to regulate the boiler’s
on/off operation and to modulate the firing rate of the
boiler to closely match the required demand.
ENTERING MCBA ACCESS CODE
The installer must enter the MCBA Access Code to
adjust the advanced parameter settings of the MCBA.
The Access Code can be entered as follows:
1. Press the MODE button until the display shows
STBY .
2. Press and hold the MODE and STEP buttons
together for 2 to 3 seconds until the display shows
CODE .
3. Press the STEP button once and the display will
show C_ XX where XX represents a random num-
ber.
4. Press the “+” or “–“ buttons to change the number
displayed to read
C_54 . Press and hold the “+” or
“–“ button to rapidly change the number.
5. When the display reads C_54 , press the STORE but-
ton to save the Access Code. The display should
flash to indicate that the Access Code was saved.
After the Access Code has been entered, the advanced
parameters can be accessed by pressing the MODE
button until the display shows
PARA . Once the display
shows PARA , press the STEP button to reach the
appropriate parameter. The display should follow the fol-
lowing sequence:
Press STEP once-
1140
Press STEP x2 - 2_01
Press STEP x3 - 3_01
Press STEP x4 - 4186
Press STEP x5 - P_10
Press STEP x6 - P_11 Etc......
After Parameter 4, the display will show P followed by
the parameter number. Once a particular parameter is
reached, the display will change to show the current set-
ting of that parameter.
The actual parameter values displayed on the dis-
play may vary depending on the application, but the
sequence will always occur in the order shown.
Changing a Parameter Setting
1. Use the “+” or “–“ button to change the parameter set-
ting.
2. Press the STORE button to save the change. The
display should flash to indicate that the change was
saved.
3. Press the RESET button to leave the Access Code
mode.
If a parameter setting is changed but the STORE but-
ton is not pressed to save the setting, the MCBA will
automatically store the setting after 15 minutes.
Ensure all parameters are at their factory settings or
appropriately revised for the application prior to
commissioning the boiler. Failure to comply could
result in erratic or unreliable operation of the
Prestige boiler.
Once a parameter setting has been revised and
stored, pressing the STEP button will display the
setting of the next parameter without showing
P_ XX . To avoid confusion, It is advisable to contin-
ue pressing the STEP button until Parameter 46 is
reached. The next press of the STEP button will
cause the display to roll over to Parameter 1.
Continue pressing the STEP button until the next
parameter to be adjusted is reached and revise the
setting.
NOTICE
WARNING
NOTICE

3
REVISING APPLICATION SETTINGS
The following sections in this manual cover the various
parameters that can be changed to accommodate the
particular application. The first section covers the
parameters related to the production of domestic hot
water. The next section covers the parameters related
to space heating.
The installer should record each parameter revision
using the worksheet located in the back of the manual.
Prior to changing any parameters, the installer should
determine which parameters need to be changed to
meet the requirements of the application. It may be nec-
essary to change multiple parameters in order to meet
those requirements.

4
DOMESTIC HOT WATER (DHW) PARAMETERS

5
DOMESTIC HOT WATER (DHW)
APPLICATIONS
The Prestige Boiler provides a domestic hot water
(DHW) priority feature, which will block a heating call
when a domestic hot water call is present. The length of
time that a domestic call has priority over a heating call
can be set with Parameter 43. A domestic call can be
sent from either an Aquastat or an NTC sensor in the
Indirect Water Heater. The type of domestic call signal
can be changed with Parameter 46. During a domestic
call, the DHW circulator will be enabled and the boiler
setpoint will be set to the DHW setpoint. The boiler set-
point for a domestic call is calculated by adding
Parameters 1 & 21. The central heating (CH) circulator
will be disabled from providing water to the space heat-
ing system during a domestic call.
DHW APPLICATION SELECTION
(PARAMETER 2)
The boiler response to a domestic hot water call can be
changed with Parameter 2. Parameter 2 provides 4 dif-
ferent modes of domestic hot water operation.
DHW Application Selection Options
(Parameter 2)
DHW Call Disabled
(Parameter 2 = 00)
The boiler will not respond to a domestic call from an
Indirect Water Heater. Both the burner and DHW circu-
lator will remain off during a domestic call. The boiler will
continue to respond to a call for heat from the heating
system.
DHW Call Enabled – Factory Setting
(Parameter 2 = 01)
The boiler will respond to a domestic call from an Indirect
Water Heater. Both the burner and DHW circulator will
operate during a domestic call. A domestic call has pri-
ority over a heating system call for heat. The boiler set-
point will be set to the DHW setpoint and the DHW cir-
culator will run. The CH circulator will be off.
Burner Disabled, DHW Pump Continuous
(Parameter 2 = 02)
The burner will not respond to a domestic call from an
Indirect Water Heater. The DHW circulator will run con-
tinuously, even during a heating call. The boiler will con-
tinue to respond to a call for heat from the heating system.
Burner Enabled, DHW Pump Continuous
(Parameter 2 = 03)
The boiler will respond to a domestic call from an Indirect
Water Heater. The burner will operate during a domes-
tic call. The DHW circulator will run continuously, even
during a heating call. A domestic call has priority over a
heating system call for heat. The boiler setpoint will be
set to the DHW setpoint. The CH circulator will be off.

6
BOILER SETPOINT FOR DHW CALL
(PARAMETER 1 & 21)
The boiler setpoint for a domestic call is calculated by
adding Parameters 1 & 21. The maximum boiler set-
point is 194°F. The factory settings result in a boiler set-
point of 186°F (140°F + 46°F) for a domestic call.
DHW Setting
(Parameter 1)
Setpoint Value Addition for DHW
(Parameter 21)
If Parameter 1 is set below 134°F, it is recommended
that Parameter 21 be increased to maintain a high boil-
er setpoint during a domestic call. A low boiler setpoint
will adversely affect the Indirect Water Heater perform-
ance and can lead to longer domestic calls.
Parameter 1 Adjustment
To change Parameter 1, press the MODE button until the
display shows PARA . Press the STEP button once to
reach Parameter 1. Press the “+” or “–“ button to change
the setting of Parameter 1 to the desired setting. Press
the STORE button and confirm that the display blinks to
indicate the setting has been stored.
Parameter 21 Adjustment
To change Parameter 21, requires entering the Access
Code as outlined on page 2. After entering the Access
Code, press the MODE button until the display shows
PARA . Press the STEP button to reach Parameter 21.
Press the “+” or “–“ button to change the setting of
Parameter 21 to the desired setting. Press the STORE
button and confirm that the display blinks to indicate the
setting has been stored.
When selecting continuous DHW circulator opera-
tion, the installer should install a thermostatic mixing
valve on the outlet of the Indirect Water Heater to pre-
vent a potential scalding hazard. Failure to comply
could result in a scalding hazard causing severe per-
sonal injury, death, or substantial property damage.
When selecting continuous DHW circulator opera-
tion, the DHW circulator will have priority over the
CH circulator which will prevent the CH circulator
from operating during a heating call.
Parameter 2 Adjustment
To change Parameter 2, press the MODE button until the
display shows
PARA . Press the STEP button twice to
reach Parameter 2. Press the “+” or “–“ button to change
the setting of Parameter 2 to the desired setting. Press
the STORE button and confirm that the display blinks to
indicate the setting has been stored.
A shortcut can also change Parameter 2 and disable a
domestic call. Press and hold the “–“ key for approxi-
mately 2 seconds while in STBY mode. Releasing the
“–“ key when
dOFF is shown on the display will disable
the DHW function of the boiler. To enable the DHW func-
tion, press and hold the “–“ key while in STBY mode and
release when the display shows
2_ XXX where XXX
represents the DHW setpoint.
This method of using the “–“ button to disable a
domestic call will not disable the DHW circulator if it
has already been placed in continuous operation.
To change both burner and circulator operation,
Parameter 2 must be changed in the PARA mode.
NOTICE
NOTICE
DANGER

DHW OPERATING SIGNAL SELECTION
(PARAMETER 46)
The type of domestic call signal can be changed with
Parameter 46. Parameter 46 allows the selection of
either an Aquastat or NTC Sensor as the signaling
device for a domestic call.
DHW Operating Signal Selection Options
(Parameter 46)
Prestige Excellence with NTC Sensor – Factory
Setting (Parameter 46 = 02)
The domestic call is initiated from an NTC sensor in the
Indirect Water Heater. The setpoint for domestic hot
water in the Indirect Water Heater is set with Parameter
1. The domestic water temperature is monitored and
compared to the domestic hot water setpoint to deter-
mine if a domestic call is needed. The domestic water
temperature can be monitored on the boiler display via
item 3 of the INFO menu.
Prestige Solo with NTC Sensor
(Parameter 46 = 12)
The domestic call is initiated from an NTC sensor in the
Indirect Water Heater. The setpoint for domestic hot
water in the Indirect Water Heater is set with Parameter
1. The domestic water temperature is monitored and
compared to the domestic hot water setpoint to deter-
mine if a domestic call is needed. The domestic water
temperature can be monitored on the boiler display via
item 3 of the INFO menu.
Prestige Solo with Aquastat – Factory Setting
(Parameter 46 = 13)
The domestic call is initiated from an aquastat in the
Indirect Water Heater. The presence of a domestic call
can be displayed on the boiler via item 3 of the INFO
menu. A reading of -22 indicates no domestic call is
present. A reading of
230 indicates a domestic call is
present.
Parameter 46 Adjustment
To change Parameter 46, requires entering the Access
Code as outlined on page 2. After entering the Access
Code, press the MODE button until the display shows
PARA . Press the STEP button to reach Parameter 46.
Press the “+” or “–“ button to change the setting of
Parameter 46 to the desired setting. Press the STORE
button and confirm that the display blinks to indicate the
setting has been stored.
Parameter 46 has multiple settings available in addi-
tion to the settings listed. DO NOT set Parameter 46
to any setting other than those listed above. Failure
to comply can result in erratic or unreliable opera-
tion of the Prestige Boiler.
WARNING
7

8
DHW NTC SENSOR DIFFERENTIALS
(PARAMETER 38 & 39)
When an NTC sensor is selected for the DHW operating
signal with Parameter 46, the on and off differentials can
be adjusted with Parameters 38 & 39.
DHW “On” Differential
(Parameter 38)
DHW “Off” Differential
(Parameter 39)
DHW “On” Differential
(Parameter 38)
The setpoint for domestic hot water in the Indirect Water
Heater is set with Parameter 1. Parameter 38 sets the
domestic hot water storage temperature low limit. A
domestic call is initiated when the domestic hot water tem-
perature goes below Parameter 1 minus Parameter 38.
Alow setting of Parameter 38 will result in a quick burn-
er response to any domestic hot water draw from the
Indirect Water Heater. A high setting of Parameter 38
will result in a delayed burner response to any domestic
hot water draw from the Indirect Water Heater.
The DHW “On” Differential setting of Parameter 38
greatly affects the production of domestic hot water.
A low setting of Parameter 38 could result in a rapid
response to a domestic hot water demand resulting
in a potential scald hazard. It is strongly recom-
mended that the installer utilize a thermostatic mix-
ing valve on the hot water outlet of the Indirect Water
Heater. Failure to comply could result in severe per-
sonal injury, death, or substantial property damage.
DANGER
DHW “Off” Differential
(Parameter 39)
The setpoint for domestic hot water in the Indirect Water
Heater is set with Parameter 1. Parameter 39 sets the
domestic hot water storage temperature high limit. A
domestic call will end when the domestic hot water tem-
perature goes above Parameter 1 plus Parameter 39.
A low setting of Parameter 39 will result in a minimal
overshoot of the domestic hot water setpoint. A high set-
ting of Parameter 39 will result in an extended burner
cycle in response to a domestic hot water draw from the
Indirect Water Heater. This extended burner cycle will
result in a final domestic hot water storage temperature
that is much higher than desired.
The DHW “Off” Differential setting of Parameter 39
greatly affects the production of domestic hot water.
A high setting of Parameter 38 could result in an
excessive domestic hot water storage temperature
resulting in a potential scald hazard. It is strongly
recommended that the installer utilize a thermostat-
ic mixing valve on the hot water outlet of the Indirect
Water Heater. Failure to comply could result in
severe personal injury, death, or substantial proper-
ty damage.
Parameter 38 Adjustment
To change Parameter 38, requires entering the Access
Code as outlined on page 2. After entering the Access
Code, press the MODE button until the display shows
PARA . Press the STEP button to reach Parameter 38.
Press the “+” or “–“ button to change the setting of
Parameter 38 to the desired setting. Press the STORE
button and confirm that the display blinks to indicate the
setting has been stored.
Parameter 39 Adjustment
To change Parameter 39, requires entering the Access
Code as outlined on page 2. After entering the Access
Code, press the MODE button until the display shows
PARA . Press the STEP button to reach Parameter 39.
Press the “+” or “–“ button to change the setting of
Parameter 39 to the desired setting. Press the STORE
button and confirm that the display blinks to indicate the
setting has been stored.
DANGER

DHW CIRCULATOR POST PUMP TIME
PERIOD
(PARAMETER 33)
At the completion of a domestic call, the DHW circulator
will continue to operate for a time period set by
Parameter 33.
DHW Circulator Post Pump Time
(Parameter 33)
The post pump feature allows the heat remaining in the
boiler to be sent to the Indirect Water Heater, thus pre-
venting overheating in low temperature space heating
applications.
When adjusting the DHW circulator post pump time,
it is strongly recommended that the installer utilize
a thermostatic mixing valve on the hot water outlet
of the Indirect Water Heater. Failure to comply
could result in severe personal injury, death, or sub-
stantial property damage.
Parameter 33 Adjustment
To change Parameter 33, requires entering the Access
Code as outlined on page 2. After entering the Access
Code, press the MODE button until the display shows
PARA . Press the STEP button to reach Parameter 33.
Press the “+” or “–“ button to change the setting of
Parameter 33 to the desired setting. Press the STORE
button and confirm that the display blinks to indicate the
setting has been stored.
The parameter setting is multiplied by 10.2 seconds
to reach the actual post pump time. For example,
the factory setting of 3 results in a post pump time
of 30.6 seconds.
NOTICE
DANGER
DHW NTC SENSOR ERROR CODES
Two error codes are possible when an NTC sensor is
selected for the DHW operating signal with Parameter
46.
If a short circuit is detected across the Indirect Water
Heater sensor terminals of the Prestige, a soft lockout
will occur. This lockout will be indicated by a boiler sta-
tus code of
9 , with an alternating error code of b_33 .
Check the sensor wiring for a possible short circuit.
Verify the resistance of NTC Sensor.
If an open circuit is detected across the Indirect Water
Heater sensor terminals of the Prestige, a soft lockout
will occur. This lockout will be indicated by a boiler sta-
tus code of
9 , with an alternating error code of b_38 .
Check sensor wiring for continuity and proper termina-
tion at Prestige terminal strip. Verify the resistance of
NTC Sensor.
During a soft lockout, the burner function is blocked
from both domestic and heating calls. The CH cir-
culator will continue to operate during a heating call.
Both error codes will automatically reset once the
condition has been corrected.
FROST / FREEZE PROTECTION OF
INDIRECT WATER HEATER
This feature is only available when an NTC sensor is
selected for the DHW operating signal with Parameter
46. If the domestic hot water temperature falls to 38°F,
the burner and DHW circulator will operate. The burner
will operate at its minimum input and the circulator will
operate until the domestic hot water temperature reach-
es 50°F. At that point, the burner and circulator will be
turned off. This feature is always active even if the
domestic hot water function has been disabled with
Parameter 2.
NOTICE
9

10
DHW CALL BLOCKING TIME
(PARAMETER 41)
After the completion of a domestic call, a time delay peri-
od before responding to the next DHW call can be set
with Parameter 41.
DHW Call Blocking Time
(Parameter 41)
During the DHW call blocking time, the burner will not
respond to a domestic call. The DHW circulator will con-
tinue to operate for a domestic call. This blocking time
has no affect on heating calls. This DHW call blocking
feature prevents short cycling of the burner and extends
the life of the burner components.
Along DHW call blocking time could adversely
affect the production of domestic hot water.
Parameter 41 Adjustment
To change Parameter 41, requires entering the Access
Code as outlined on page 2. After entering the Access
Code, press the MODE button until the display shows
PARA . Press the STEP button to reach Parameter 41.
Press the “+” or “–“ button to change the setting of
Parameter 41 to the desired setting. Press the STORE
button and confirm that the display blinks to indicate the
setting has been stored.
The parameter setting is multiplied by 10.2 seconds
to reach the actual DHW call blocking time. For
example, a setting of 3 results in a DHW call block-
ing time of 30.6 seconds.
NOTICE
NOTICE
DHW TO CH CALL BLOCKING TIME
(PARAMETER 42)
After the completion of a domestic call, a time delay
period before responding to a heating call can be set
with Parameter 42.
DHW to CH Call Blocking Time
(Parameter 42)
During the DHW to CH call blocking time, the burner will
not respond to a heating call. The CH circulator will con-
tinue to operate for a heating call. This blocking time has
no affect on domestic calls. This blocking time in con-
junction with the DHW post circulator feature may prevent
overheating of a low temperature heating system.
If the DHW to CH call blocking time is set to
00
(Factory Setting) and the boiler is receiving both domes-
tic and heating calls. At the completion of the domestic
call, the burner will continue to fire to maintain the CH
setpoint and the CH circulator will operate.
A long DHW to CH call blocking time could adverse-
ly affect the production of heat and the comfort
level of the occupants.
Parameter 42 Adjustment
To change Parameter 42, requires entering the Access
Code as outlined on page 2. After entering the Access
Code, press the MODE button until the display shows
PARA . Press the STEP button to reach Parameter 42.
Press the “+” or “–“ button to change the setting of
Parameter 42 to the desired setting. Press the STORE
button and confirm that the display blinks to indicate the
setting has been stored.
The parameter setting is multiplied by 10.2 seconds
to reach the actual DHW to CH call blocking time.
For example, a setting of 3 results in a DHW to CH
call blocking time of 30.6 seconds.
NOTICE
NOTICE

DHW PRIORITY TIMEOUT
(PARAMETER 43)
The length of time that a domestic call has priority over
aheating call can be set with Parameter 43.
DHW Priority Timeout
(Parameter 43)
The boiler provides a domestic hot water priority feature,
which will block a heating call when a domestic hot water
call is present. A DHW priority timeout setting of
00
(Factory Setting) will not limit the length of a domestic
call. A domestic call will always have priority over a
heating call.
ADHW priority timeout setting above 00 will limit the
length of a domestic call when both domestic and heat-
ing calls are present. Once the DHW priority timeout
setting has been reached, priority will shift to the heating
call. If both calls continue, the priority will switch back to
the domestic call after reaching the DHW priority timeout
setting.
A short DHW priority setting could lead to excessive
switching between domestic and heating calls. This
excessive switching could adversely affect the pro-
duction of heat and domestic hot water.
Parameter 43 Adjustment
To change Parameter 43, requires entering the Access
Code as outlined on page 2. After entering the Access
Code, press the MODE button until the display shows
PARA . Press the STEP button to reach Parameter 43.
Press the “+” or “–“ button to change the setting of
Parameter 43 to the desired setting. Press the STORE
button and confirm that the display blinks to indicate the
setting has been stored.
NOTICE
11

12
CENTRAL HEATING (CH) PARAMETERS

13
CENTRAL HEATING (CH) APPLICATIONS
The Prestige Boiler provides an outdoor reset feature,
which will lower the central heating (CH) setpoint as the
outdoor temperature rises. This allows the boiler output
to more closely match the actual heat load requirements
and thus improve efficiency. A heating call can be sent
from a Room Thermostat (Factory Setting), the outdoor
temperature sensor, or an external control system.
During a heating call, the domestic hot water (DHW) cir-
culator will be disabled from providing water to the
Indirect Water Heater. The CH circulator will be enabled
and the boiler setpoint will be set to the CH setpoint.
CH CONFIGURATION OPTIONS
The following outline lists the CH configuration options
that are available.
1. Room Thermostat (Parameter 45 = 00)
The heating call is initiated from a switched dry contact
such as a room thermostat or zone panel.
a. Fixed CH Setpoint
The CH Setpoint is set to the CH Maximum
Boiler Operating Setpoint (Parameter 4) when
an Outdoor Temperature Sensor is not connect-
ed to the boiler. Additional features include:
CH Application Selection (Parameter 3)
CH Circulator Post Pump Time (Parameter 32)
CH Call Blocking Time (Parameter 40)
b. Outdoor Reset
The CH Setpoint will vary between the CH
Maximum Boiler Operating Setpoint (Parameter
4) and the CH Minimum Boiler Operating
Setpoint (Parameter 10) when an Outdoor
Temperature Sensor is connected to the boiler.
Additional features include:
CH Application Selection (Parameter 3)
Frost Protection (Parameter 13)
Boost Feature (Parameter 19)
CH Circulator Post Pump Time (Parameter 32)
CH Call Blocking Time (Parameter 40)
2. Constant CH Demand (Parameter 45 = 01)
The heating call is continuous.
a. Outdoor Reset
The CH Setpoint will vary between the CH
Maximum Boiler Operating Setpoint (Parameter
4) and the CH Minimum Boiler Operating
Setpoint (Parameter 10) when an Outdoor
Temperature Sensor is connected to the boiler.
Additional features include:
CH Application Selection (Parameter 3)
Frost Protection (Parameter 13)
CH Block Temperature (Parameter 18)
Parallel Shift Feature (Parameter 20)
CH Circulator Post Pump Time (Parameter 32)
3. 0-10 VDC Analog Signal (Parameter 45 = 02 or
03)
The heating call is initiated from an external modu-
lating boiler controller. The CH Maximum Boiler
Operating Setpoint (Parameter 4) limits the water
supply temperature from the boiler. Additional fea-
tures include:
CH Application Selection (Parameter 3)
CH Circulator Post Pump Time (Parameter 32)
CH Call Blocking Time (Parameter 40)

14
CH APPLICATION SELECTION
(PARAMETER 3)
The boiler response to a heating call can be changed
with Parameter 3. Parameter 3 provides 4 different
modes of central heating operation.
CH Application Selection Options
(Parameter 3)
CH Call Disabled
(Parameter 3 = 00)
The boiler will not respond to a heating call. Both the
burner and CH circulator will remain off during a heating
call. The boiler freeze protection feature will always be
active even if CH call is disabled. The boiler will contin-
ue to respond to a domestic call from an Indirect Water
Heater.
CH Call Enabled – Factory Setting
(Parameter 3 = 01)
The boiler will respond to a heating call. Both the burn-
er and CH circulator will operate during a heating call. A
domestic call has priority over a heating system call for
heat. The boiler setpoint will be set to the CH setpoint
and the CH circulator will run. The DHW circulator will be
off.
Burner Disabled, CH Pump Continuous
(Parameter 3 = 02)
The burner will not respond to a heating call. The CH cir-
culator will run continuously, even during a domestic call.
The boiler freeze protection feature will always be active
even if the burner is disabled. The boiler will continue to
respond to a domestic call from an Indirect Water
Heater.
Burner Enabled, CH Pump Continuous
(Parameter 3 = 03)
The burner will respond to a heating call. The burner will
operate during a heating call. The CH circulator will run
continuously, but will be disabled during a domestic call.
Adomestic call has priority over a heating system call for
heat. The boiler setpoint will be set to the CH setpoint.
The DHW circulator will be off.
Parameter 3 Adjustment
To change Parameter 3, press the MODE button until the
display shows PARA . Press the STEP button to reach
Parameter 3. Press the “+” or “–“ button to change the
setting of Parameter 3 to the desired setting. Press the
STORE button and confirm that the display blinks to indi-
cate the setting has been stored.
A shortcut can also change Parameter 3 and disable a
heating call. Press and hold the “+“ key for approxi-
mately 2 seconds while in STBY mode. Releasing the
“+“ key when
C0ff is shown on the display will disable
the CH function of the boiler. To enable the CH function,
press and hold the “+“ key while in STBY mode and
release when the display shows
3 XXX where XXX rep-
resents the CH setpoint.
This method of using the “+“ button to disable a
heating call will not disable the CH circulator if it has
already been placed in continuous operation. To
change both burner and circulator operation,
Parameter 3 must be changed in the PARA mode.
NOTICE

BOILER SETPOINT FOR CH CALL
(PARAMETERS 4,10,11,12)
The boiler setpoint for a heating call can be fixed or vary
with the outdoor temperature. If the application requires
a constant supply temperature from the boiler, the out-
door temperature sensor should not be connected to the
boiler. If an outdoor temperature sensor is connected to
the boiler, the outdoor reset function is automatically
enabled and will vary the CH setpoint with the change in
outdoor temperature. The outdoor reset function has no
affect on the DHW setpoint during a domestic call.
CH Maximum Boiler Operating Setpoint
(Parameter 4)
If an outdoor temperature sensor is not connected to the
boiler, the boiler setpoint for a heating call will be set to
the CH Maximum Boiler Operating Setpoint. If an out-
door temperature sensor is connected, the CH
Maximum Boiler Operating Setpoint becomes the boiler
setpoint on the CH Reset Curve Coldest Day. The out-
door temperature can be monitored on the boiler display
via item 4 of the INFO menu.
CH Minimum Boiler Operating Setpoint
(Parameter 10)
This parameter is not applicable if an outdoor sensor is
not connected to the boiler. When an outdoor tempera-
ture sensor is connected, the CH Minimum Boiler
Operating Setpoint becomes the boiler setpoint on the
CH Reset Curve Warmest Day.
CH Reset Curve Coldest Day
(Parameter 11)
This parameter is not applicable if an outdoor sensor is not
connected to the boiler. When an outdoor temperature
sensor is connected, the CH Reset Curve Coldest Day is
the coldest design temperature of the heating system.
CH Reset Curve Warmest Day
(Parameter 12)
This parameter is not applicable if an outdoor sensor is not
connected to the boiler. When an outdoor temperature
sensor is connected, the CH Reset Curve Warmest Day is
the warmest design temperature of the heating system.
Parameter 4 Adjustment
To change Parameter 4, press the MODE button until the
display shows PARA . Press the STEP button to reach
Parameter 4. Press the “+” or “–“ button to change the
setting of Parameter 4 to the desired setting. Press the
STORE button and confirm that the display blinks to indi-
cate the setting has been stored.
Parameter 10 Adjustment
To change Parameter 10, requires entering the Access
Code as outlined on page 2. After entering the Access
Code, press the MODE button until the display shows
PARA . Press the STEP button to reach Parameter 10.
Press the “+” or “–“ button to change the setting of
Parameter 10 to the desired setting. Press the STORE
button and confirm that the display blinks to indicate
the setting has been stored.
15

16
Parameter 11 Adjustment
To change Parameter 11, requires entering the Access
Code as outlined on page 2. After entering the Access
Code, press the MODE button until the display shows
PARA . Press the STEP button to reach Parameter 11.
Press the “+” or “–“ button to change the setting of
Parameter 11 to the desired setting. Press the STORE
button and confirm that the display blinks to indicate
the setting has been stored.
Parameter 12 Adjustment
To change Parameter 12, requires entering the Access
Code as outlined on page 2. After entering the Access
Code, press the MODE button until the display shows
PARA . Press the STEP button to reach Parameter 12.
Press the “+” or “–“ button to change the setting of
Parameter 12 to the desired setting. Press the STORE
button and confirm that the display blinks to indicate
the setting has been stored.

17
40
80
120
160
200
Min.
86
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Fig. 1: Setting the Boiler Operating Limits
60
100 80 60 40 20 -20
0
80
100
120
140
160
180
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Fig. 2: Setting the Outdoor Temperature Limits

18
CH OPERATING SIGNAL SELECTION
(PARAMETER 45)
The type of heating call signal can be changed with
Parameter 45. The boiler can be set to operate with a
constant CH demand or a heating call can be initiated
from a room thermostat or an analog 0 – 10 VDC signal
from an external control system.
CH Operating Signal Selection Options
(Parameter 45)
Room Thermostat - Factory Setting
(Parameter 45 = 00)
The heating call is initiated from a switched dry contact
such as a room thermostat or zone panel.
Constant CH Demand
(Parameter 45 = 01)
The heating call is continuous but can be blocked with
Parameter 18.
0 – 10 VDC Analog Signal on Prestige
(Parameter 45 = 02)
The heating call is initiated from an external modulating
boiler controller wired directly to the boiler.
0 – 10 VDC Analog Signal on AM-4
(Parameter 45 = 03)
The heating call is initiated from an external modulating
boiler controller wired to an AM-4 interface module.
Parameter 45 Adjustment
To change Parameter 45, requires entering the Access
Code as outlined on page 2. After entering the Access
Code, press the MODE button until the display shows
PARA . Press the STEP button to reach Parameter 45.
Press the “+” or “–“ button to change the setting of
Parameter 45 to the desired setting. Press the STORE
button and confirm that the display blinks to indicate the
setting has been stored.
Parameter 45 has multiple settings available in
addition to the settings listed. DO NOT set
Parameter 45 to any setting other than those listed
above. Failure to comply can result in erratic or
unreliable operation of the Prestige Boiler.
WARNING