TriangleTube Prestige Supplement - Type 5 MCBA Control Application Manual

WARNING

prestige

Control Application

Supplement - Type 5 MCBA

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 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.

Revised 5/29/2008

2008-12 Prestige Control Appl. Supl.

Table of Contents

roduct and Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

P

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

i

Product and Safety Information

IMPORTANT INFORMATION - READ
BEFORE PROCEEDING

WARNING

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 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.

DEFINITIONS

The following terms are used throughout this manual to
bring attention to the presence of potential hazards or to
important information concerning the product.

DANGER

Indicates the presence of a hazardous situation
which, if ignored, will result in death, serious injury
or substantial property damage.

WARNING

Indicates a potentially hazardous situation which, if
ignored, can result in death, serious injury or sub­stantial property damage.

CAUTION

Indicates a potentially hazardous situation which, if
ignored, may result in minor injury or substantial
property damage.

NOTICE

Indicates special instructions on installation, opera­tion or maintenance, which are important to the
equipment but not related to personal injury hazards.

BEST PRACTICES

Indicates recommendations made by Triangle Tube
for the installers which will help to ensure optimum
operation and longevity of the equipment.

NOTICE

Triangle Tube reserves the right to modify the technical specifications and components of its product without
prior notice.

1

OPERATING INFORMATION

The Prestige Boiler is controlled by the MCBA Control
Module, which is an electronic microprocessor controller.

he MCBA offers many control options, which may be

T

djusted for various applications to achieve optimum

a
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

ber.

4. Press the “+” or “–“ buttons to change the number

displayed to read
“–“ button to rapidly change the number.

5. When the display reads
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

shows
appropriate parameter. The display should follow the fol­lowing sequence:

PARA

, press the STEP button to reach the

Press STEP once-

Press STEP

Press STEP x3 -

Press STEP

x2 -

x4 -

XX

C_54

1140
2_01
3_01
4186

represents a random num-

. Press and hold the “+” or

C_54

, press the STORE but-

PARA

. Once the display

ress STEP x5 -

P

ress STEP x6 -

P

After Parameter 4, the display will show P followed by
the parameter number. Once a particular parameter is

eached, the display will change to show the current set-

r
ting of that parameter.

NOTICE

The actual parameter values displayed on the dis­play 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 set­ting.

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.

WARNING

If a parameter setting is changed but the STORE but­ton 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.

NOTICE

Once a parameter setting has been revised and
stored, pressing the STEP
setting of the next parameter without showing

P_

XX

. To avoid confusion, It is advisable to contin­ue pressing the STEP button until Parameter 46 is
reached. The next press of the STEP
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.

P_10
P_11

tc......

E

button will display the

button will

2

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.

he installer should record each parameter revision

T
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 nec­essary to change multiple parameters in order to meet
those requirements.

3

DOMESTIC HOT WATER (DHW) PARAMETERS

4

DOMESTIC HOT WATER (DHW)
APPLICATIONS

DHW APPLICATION SELECTION

(PARAMETER 2)

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 set­point 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 heat­ing system during a domestic call.

The boiler response to a domestic hot water call can be
changed with Parameter 2. Parameter 2 provides 4 dif­ferent 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 circu­lator 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 pri­ority over a heating system call for heat. The boiler set­point will be set to the DHW setpoint and the DHW cir­culator 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 con­tinuously
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
W
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.

, even during a heating call. The boiler will con-

ater Heater. The burner will operate during a domes-

The CH circulator will be of

f.

5

DANGER

hen selecting continuous DHW circulator opera-

W
tion, the installer should install a thermostatic mixing
valve on the outlet of the Indirect Water Heater to pre­vent a potential scalding hazard. Failure to comply
could result in a scalding hazard causing severe per­sonal injury, death, or substantial property damage.

NOTICE

When selecting continuous DHW circulator opera­tion, 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

PARA

display shows
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 approxi­mately 2 seconds while in STBY mode. Releasing the

“–“ key when
the DHW function of the boiler. To enable the DHW func­tion, press and hold the “–“ key while in STBY mode and

release when the display shows
represents the DHW setpoint.

NOTICE

dOFF

. Press the STEP button twice to

is shown on the display will disable

2_

XXX

where

XXX

BOILER SETPOINT FOR DHW CALL
(PARAMETER 1 & 21)

he boiler setpoint for a domestic call is calculated by

T

dding Parameters 1 & 21. The maximum boiler set-

a
point is 194°F. The factory settings result in a boiler set­point 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 boil­er setpoint during a domestic call. A low boiler setpoint
will adversely affect the Indirect Water Heater perform­ance and can lead to longer domestic calls.

Parameter 1 Adjustment

To change Parameter 1, press the MODE button until the

display shows
reach Parameter 1. Press the “+” or “–“ button to change
the setting of Parameter 1 to the desired setting. Press
the ST
indicate the setting has been stored.

ORE button and confirm that the display blinks to

PARA

. Press the STEP

button once to

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 P

ARA

mode.

Parameter 21

o change Parameter 21, requires entering the

T
Code as outlined on page 2. After entering the Access
Code, press the MODE button until the display shows

PARA

. Press the STEP
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.

6

Adjustment

Access

button to reach Parameter 21.

DHW OPERATING SIGNAL SELECTION
(PARAMETER 46)

he type of domestic call signal can be changed with

T

arameter 46. Parameter 46 allows the selection of

P
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 deter­mine if a domestic call is needed. The domestic water
temperature can be monitored on the boiler display via
item 3 of the INFO menu.

arameter 46 Adjustment

P

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.

WARNING

Parameter 46 has multiple settings available in addi­tion 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 opera­tion of the Prestige Boiler.

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

The domestic water temperature is monitored and

1.
compared to the domestic hot water setpoint to deter­mine 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

present. A reading of
present.

reading of

-22

indicates no domestic call is

230

indicates a domestic call is

7

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 tem­perature goes below Parameter 1 minus Parameter 38.

A low setting of Parameter 38 will result in a quick burn­er 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 W

DANGER

ater Heater

.

DHW “Off” Differential

Parameter 39)

(

he setpoint for domestic hot water in the Indirect Water

T
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 tem­perature 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 set­ting 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.

DANGER

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 thermostat­ic mixing valve on the hot water outlet of the Indirect
Water Heater. Failure to comply could result in
severe personal injury, death, or substantial proper­ty 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.

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
sonal injury

. Failure to comply could result in severe per

, death, or substantial property damage.

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

-

-

8

. Press the STEP
Press the “+” or “–“ button to change the setting of
Parameter 39 to the desired setting. Press the ST
button and confirm that the display blinks to indicate the
setting has been stored.

button to reach Parameter 39.

ORE

DHW NTC SENSOR ERROR CODES

Two error codes are possible when an NTC sensor is
selected for the DHW operating signal with Parameter

6.

4

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-

9

tus code of
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
Check sensor wiring for continuity and proper termina­tion at Prestige terminal strip. Verify the resistance of
NTC Sensor.

NOTICE

, with an alternating error code of

9

, with an alternating error code of

b_33

b_38

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

arameter 33.

P

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 pre­venting overheating in low temperature space heating
applications.

DANGER

.

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 sub­stantial property damage.

During a soft lockout, the burner function is blocked
from both domestic and heating calls. The CH cir­culator 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 reach­es 50°F. At that point, the burner and circulator will be
turned of
domestic hot water function has been disabled with
Parameter 2.

f. This feature is always active even if the

Parameter 33 Adjustment

o change Parameter 33, requires entering the Access

T
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 ST
button and confirm that the display blinks to indicate the
setting has been stored.

NOTICE

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.

9

ORE

DHW CALL BLOCKING TIME

(PARAMETER 41)

fter the completion of a domestic call, a time delay peri-

A

d before responding to the next DHW call can be set

o
with Parameter 41.

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 Call Blocking Time
(Parameter 41)

During the DHW call blocking time, the burner will not
respond to a domestic call. The DHW circulator will con­tinue 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.

NOTICE

A long DHW call blocking time could adversely
affect the production of domestic hot water.

Parameter 41 Adjustment

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 con­tinue to operate for a heating call. This blocking time has
no affect on domestic calls. This blocking time in con­junction 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
(Factory Setting) and the boiler is receiving both domes­tic 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.

NOTICE

00

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.

NOTICE

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 block­ing time of 30.6 seconds.

A long DHW to CH call blocking time could adverse­ly 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 ST
button and confirm that the display blinks to indicate the
setting has been stored.

NOTICE

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.

ORE

10

DHW PRIORITY TIMEOUT

(PARAMETER 43)

he length of time that a domestic call has priority over

T

heating call can be set with Parameter 43.

a

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
(Factory Setting) will not limit the length of a domestic
call. A domestic call will always have priority over a
heating call.

A DHW priority timeout setting above 00will limit the
length of a domestic call when both domestic and heat­ing 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.

00

NOTICE

A short DHW priority setting could lead to excessive
switching between domestic and heating calls. This
excessive switching could adversely affect the pro­duction 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.

11

CENTRAL HEATING (CH) PARAMETERS

12

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) cir­culator 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.

. Constant CH Demand (Parameter 45 = 01)

2

The heating call is continuous.

a. Outdoor Reset

he CH Setpoint will vary between the CH

T
Maximum Boiler Operating Setpoint (Parameter

) and the CH Minimum Boiler Operating

4
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 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 connect­ed 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 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 modu­lating boiler controller. The CH Maximum Boiler
Operating Setpoint (Parameter 4) limits the water
supply temperature from the boiler. Additional fea­tures include:

CH Application Selection (Parameter 3)

CH Circulator Post Pump Time (Parameter 32)

CH Call Blocking Time (Parameter 40)

CH Application Selection (Parameter 3)

Frost Protection (Parameter 13)

Boost Feature (Parameter 19)

CH Circulator Post Pump T

CH Call Blocking T

ime (Parameter 40)

ime (Parameter 32)

13

CH APPLICATION SELECTION

(PARAMETER 3)

he boiler response to a heating call can be changed

T

ith Parameter 3. Parameter 3 provides 4 different

w
modes of central heating operation.

CH Application Selection Options
(Parameter 3)

CH Call Disabled
(Parameter 3 = 00)

arameter 3 Adjustment

P

To change Parameter 3, press the MODE button until the

display shows

arameter 3. Press the “+” or “–“ button to change the

P
setting of Parameter 3 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 3 and disable a
heating call. Press and hold the “+“ key for approxi­mately 2 seconds while in STBY mode. Releasing the

“+“ key when
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
resents the CH setpoint.

PARA

C0ff

. Press the STEP button to reach

is shown on the display will disable

3

XXX

where

XXX

rep

-

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 contin­ue 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 burn­er 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 cir­culator 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.

NOTICE

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.

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

domestic call has priority over a heating system call for

A
heat. The boiler setpoint will be set to the CH setpoint.
The DHW circulator will be of

, but will be disabled during a domestic call.

f.

14

BOILER SETPOINT FOR CH CALL

(PARAMETERS 4,10,11,12)

he boiler setpoint for a heating call can be fixed or vary

T

ith the outdoor temperature. If the application requires

w
a constant supply temperature from the boiler, the out­door 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)

H Reset Curve Coldest Day

C
(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)

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 out­door temperature sensor is connected, the CH
Maximum Boiler Operating Setpoint becomes the boiler
setpoint on the CH Reset Curve Coldest Day. The out­door 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 tempera­ture sensor is connected, the CH Minimum Boiler
Operating Setpoint becomes the boiler setpoint on the
CH Reset Curve Warmest Day.

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
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 indi­cate 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.

PARA

. Press the STEP button to reach

15

arameter 11 Adjustment

P

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.

16

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17

CH OPERATING SIGNAL SELECTION

(PARAMETER 45)

he type of heating call signal can be changed with

T

arameter 45. The boiler can be set to operate with a

P
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.

arameter 45 Adjustment

P

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.

WARNING

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.

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.

18

FROST PROTECTION SETPOINT
(PARAMETER 13)

he Frost Protection Feature is available when the out-

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oor temperature sensor is connected to the boiler.

d

Frost Protection Setpoint
(Parameter 13)

When the outdoor temperature falls below the setting of
this parameter, the CH circulator will be enabled if there
are no heating or domestic calls. This feature is always
active and cannot be disabled.

Parameter 13 Adjustment

To change Parameter 13, 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 13.
Press the “+” or “–“ button to change the setting of
Parameter 13 to the desired setting. Press the STORE
button and confirm that the display blinks to indicate the
setting has been stored.

NOTICE

he Frost Protection Feature is based on the outdoor

T
temperature and is in addition to the Freeze Protection
Feature that is based on the boiler temperature.

The Freeze Protection Feature will operate the CH
circulator if the boiler temperature falls to 46°F. The
burner will operate at its minimum input if the boiler
temperature continues to fall to 38°F. The burner
and CH circulator will be disabled once the boiler
temperature reaches 50°F. This feature is always
active even if the heating function has been disabled
with Parameter 3.

19

CH BLOCK TEMPERATURE SETTING

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(PARAMETER 18)

his boiler shutdown feature is available when a con-

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tant CH demand is selected for the CH operating signal

s
with Parameter 45.

CH Block Temperature Setting
(Parameter 18)

When a constant CH demand is selected for the CH
operating signal with Parameter 45, a continuous heat­ing call is generated. The heating call will end when the
boiler CH setpoint falls below the temperature set by this
parameter. The heating call will resume when the boiler
CH setpoint rises above the temperature set by this
parameter.

arameter 18 Adjustment

P

To change Parameter 18, 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 18.
Press the “+” or “–“ button to change the setting of
Parameter 18 to the desired setting. Press the STORE
button and confirm that the display blinks to indicate the
setting has been stored.

NOTICE

The factory setting of 32°F is the OFF position. The
boiler will operate with a continuous heating call.

Fig. 3: Setting the Block Temperature Set Point

20

BOOST FEATURE SETTING

40

60

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100

120

140

160

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(PARAMETER 19)

he Boost Feature is available when a room thermostat

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s selected for the CH operating signal with Parameter

i
45 and an outdoor temperature sensor is connected to
the boiler. This feature can be used to compensate for
a low outdoor reset schedule or to provide a quicker
morning recovery.

nce the call for heat has ended, the CH setpoint will

O
decrease by 2°F per minute until the original CH setpoint
is reached. If a call for heat occurs while the CH setpoint
is decreasing, the boiler will operate at the current CH
setpoint. The Boost Feature will still be active and will
raise the CH setpoint by 18°F if the call for heat in not
satisfied in the time period set by this parameter.

Parameter 19 Adjustment

Boost Feature Setting
(Parameter 19)

If a call for heat is not satisfied in the time period set by
this parameter, the CH setpoint will be raised by 18°F.
The CH setpoint will continue to be raised by 18°F for
each time period that the call for heat is not satisfied until
the CH Maximum Boiler Operating Setpoint (Parameter

4) is reached.

To change Parameter 19, 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 19.
Press the “+” or “–“ button to change the setting of
Parameter 19 to the desired setting. Press the STORE
button and confirm that the display blinks to indicate the
setting has been stored.

NOTICE

The factory setting of 00 is the OFF position. The
Boost Feature will not be active.

Fig. 4: Setting the Boost Feature Parameter

21

PARALLEL SHIFT VALUE
(PARAMETER 20)

The Parallel Shift Feature is available when a constant
CH demand is selected for the CH operating signal with
Parameter 45.

Parallel Shift Value
(Parameter 20)

When a constant CH demand is selected for the CH
operating signal with Parameter 45, a continuous heat­ing call is generated. The outdoor reset function will cal­culate the CH setpoint based on the settings of
Parameters 4,10,11,12. If the room thermostat terminals
are open, the CH setpoint will decrease by the setting of
this parameter. When the room thermostat terminals are
closed, the CH setpoint will return to the setpoint calcu­lated by the outdoor reset function.

Parameter 20 Adjustment

To change Parameter 20, 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 “+” or “–“ button to change the setting of
Parameter 20 to the desired setting. Press the STORE
button and confirm that the display blinks to indicate the
setting has been stored.

The factory setting of 00°F is the OFF position. The
CH setpoint will not decrease if the room thermostat
terminals are open.

Press the STEP button to reach Parameter 20.

NOTICE

CH CIRCULATOR POST PUMP TIME
PERIOD
(PARAMETER 32)

At the completion of a heating call, the CH circulator will
continue to operate for a time period set by Parameter

2.

3

CH Circulator Post Pump Time
(Parameter 32)

The post pump feature allows the heat remaining in the
boiler to be sent to the heating system, which will
improve the overall efficiency of the system.

NOTICE

A minimum setting of 00 results in a CH circulator
post pump time of 10 seconds. The 10 second CH
circulator post pump cycle can not be disabled and
the system should be designed to allow for this
water flow.

Parameter 32 Adjustment

To change Parameter 32, 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 32.
Press the “+” or “–“ button to change the setting of
Parameter 32 to the desired setting. Press the STORE
button and confirm that the display blinks to indicate the
setting has been stored.

22

CH CALL BLOCKING TIME
(PARAMETER 40)

fter the completion of a heating call, a time delay peri-

A

d before responding to the next CH call can be set with

o
Parameter 40.

CH Call Blocking Time
(Parameter 40)

During the CH call blocking time, the burner will not
respond to a heating call. The CH circulator will contin­ue to operate for a heating call. This blocking time has
no affect on domestic calls. This CH call blocking fea­ture prevents short cycling of the burner and extends the
life of the burner components.

arameter 40 Adjustment

P

To change Parameter 40, 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 40.
Press the “+” or “–“ button to change the setting of
Parameter 40 to the desired setting. Press the STORE
button and confirm that the display blinks to indicate the
setting has been stored.

NOTICE

The parameter setting is multiplied by 10.2 seconds
to reach the actual CH call blocking time. For exam­ple, a setting of 3 results in a CH call blocking time
of 30.6 seconds.

23

TROUBLESHOOTING INFORMATION

Last Hard Lockout Error Code

Status Code of the boiler when the
e

rror occurred.

Supply Water Temperature when
t

he error occurred.
Return Water Temperature when
the error occured.

1
2
3
4

STEP

S

TEP

STEP

STEP

Key:

Display

Description of parameters

Domestic Hot Water Temperature
w

hen the error occurred.

6

STEP

O

utdoor Temperature when the

e

rror occurred.

5

S

TEP

Status Code Description

After the Access Code has been entered, pressing the

ODE button can access additional menu items. This

M

dditional inforamtion can be useful for troubleshooting

a
the boiler. The display should follow the following
sequence:

Press MODE once-

Press MODE x2 -

Press MODE x3 -

Press MODE x4 -

Press MODE x5 -

Press MODE x6 -

Press MODE x7 -

Etc......

The

FAN

menu will display the speed of the fan, which

indicates the units firing rate. The

used. The
that occured and the conditions the boiler was in when it
occured.

Fan Speed

To display the speed of the fan, press the MODE button

until the display shows
display the fan RPM. The fan speed will vary between
1900 RPM (Low Fire) and 5300 RPM (High Fire)
depending on boiler load.

Last Error Code

ERRO

STBY
PARA
INFO
FAN
CONN
ERRO
STBY

CONN

menu will display the last error code

FAN

. Press the STEP button to

menu is not

Item 1 displays the Last Hard Lockout Code. Consult the
Prestige Installation & Maintenance Manual or
Troubleshooting Guide for Error Code descriptions.

Item 2 displays the mode the boiler was operating in
when the error occurred.

0 Standby, No Boiler Demand

1 Fan Pre/Post Purge
2 Ignition

3 Burner on for CH Demand

4 Burner on for DHW Demand

5 Air Flow Check

6 Setpoint Reached, Burner Off

7 CH Post Pump
8 DHW Post Pump

9 Burner Blocked

If the user has pressed the RESET button and cleared

the last error code, accessing the
retrieve it. To display the last error code, press the

MODE button until the display shows
STEP button to display the last error code and addition­al information as follows:

ERRO

ERRO

menu can

. Press the

Temperature of the

Item 3 displays the Supply W
boiler when the error occurred.

Item 4 displays the Return Water Temperature of the
boiler when the error occurred.

Item 5 will indicate the presence of a domestic call if an

aquastat is used in the Indirect Water Heater. If
displayed, a domestic call was not present when the

error occured. If
present when the error occurred. Item 5 displays the
actual Domestic Water Temperature of the Indirect
Water Heater if the optional IDWH sensor kit is installed.

Item 6 displays the Outdoor
occurred.

24

230

is displayed, a domestic call was

ater

emperature when the error

T

-22

is

PARAMETER WORKSHEET

25

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T
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T

Member of

Group