MACH® Series
Gas-Fired Boiler
28
3.10.3 Other CH Parameters
Other settings include the following items:
Description Value
Units
CH Setpoint
###
°F
BLR OP (Off = 0, On = 1,
Off/Pump On = 2, and
On/Pump On = 3)
#
0-3
CH Mode
#
0-8
Hysteres On (On Differential)
##
°F
Hysteres Off (Off Differential)
##
°F
Post Pump time
###
Sec
Additional CH Parameters are available and used for the various CH Modes other than mode 0, the standard Setpoint
& (Thermo)Stat control mode. These modes are further described in the P-K ENVI™ Advanced User’s Guide.
3.10.4 Other
Parameters
Other parameters include the settings for DHW (Domestic Hot Water), Boiler Settings and OEM Settings. Boiler and
OEM Settings are used during the initial programming of the control and are not adjustable.
3.11 A
DDITIONAL
M
ENU
I
TEMS
In the main menu, Standby, Information, Errors, Program Parameters, Configuration, Cascade, and Service Menus
are available. They are used for various functions of the boiler. These functions are described further in the PK
ENVI™ Advanced User’s Guide.
These menu items will be described briefly here:
•
STANDBY is the default screen and is shown during normal boiler operation.
•
The INFORMATION menu lists items that the boiler monitors such as temperatures, operating conditions, and
status of switches and components.
•
The ERRORS menu has information about the boiler status at the time of an error.
•
The PARAMETERS menu allows the user to set up selected boiler functions and operating modes.
•
The CONFIGURATION menu covers basic display information such as language, units, date/time, etc.
•
The CASCADE menu is used to sequence multiple boilers (up to 24 max) in a Master/Member network
system. Use of this function is described in detail in the Advanced User’s Guide.
•
The SERVICE menu is described below.
3.11.1 Service
Menu:
Two test modes are available in the service menu.
BNR ON TEST HI LOW
BNR OFF FAN HI LOW
The first test mode allows the service technician to hold the
boiler in high or low fire during firing operation so that the
combustion adjustment can be performed as indicated
below.
Service
BNR ON Test HI LOW
BNR OFF Fan HI LOW
Service
BNR ON Test HI LOW
BNR OFF Fan HI LOW
Service
BNR ON Test HI LOW
BNR OFF Fan HI LOW
