Patterson-Kelley MACH-05 manual Internal Setpoint Domestic Priority

MACH® Series Gas-Fired Boiler Installation

First Digit	Boiler Status
	delay. No system call for heat.
	Burner off - Domestic Hot Water pump
8	running on delay. No system call for heat.
	Burner off – auto reset lockout. A code is
	displayed indicating the reason for the
9 and b	lockout. (See Troubleshooting Section
flashing	5.5.)
A	Adjusting the 3 way valve if used
H	Burner on in manual high fire
L	Burner on in manual low fire

Parameter Mode:

The parameter mode is used to change the settings of the boiler. The parameter mode is accessed by pressing the MODE key several times until the display shows PArA.

The parameters are selected with the STEP key, and changed with the plus “+” and minus “-“ keys. Once the desired value is reached, pressing the STORE key accepts the new setting.

Parameters 1 through 4 are accessible directly at the parameter level.

Parameters higher than 4 are only accessible by authorized service personnel trained on the P-K MACH Series Boiler.

			Upper
Parameter	Description	Lower Limit	Limit
	DHW setpoint
1	if used	68°	158°
2	DHW system	0=OFF
	ON/OFF	1=ON
		2=OFF +pump
		continuous
		3=ON + pump
		continuous
3	Comfort heat	0=OFF
	system	1=ON
	ON/OFF
		2=OFF +pump
		continuous
		3=ON + pump
		continuous
	Setpoint or
	max boiler
	temp outdoor
4	air mode	68°	182°

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Information Mode:

The information mode is used to display the values of the various sensors such as inlet water temp, outlet water temp etc. The information mode is accessed by pressing the MODE key several times until InFo is displayed. The desired sensor is selected with the STEP key. The following table indicates the displayed value:

Step Value

1Outlet water temp

2Inlet water temp

3Domestic Hot Water temp *

4Outdoor air temp *

5Flue gas temp

6Boiler outlet setpoint

7Rate of change outlet temp °F/second

8Rate of change inlet temp °F/second Rate of change Domestic Hot Water

9°F/second

Second Comfort Heat system

Atemperature

*If the sensors for these functions are not installed, the display will indicate -22.

3.12.1.2 Operating Configurations

The boiler has several different operating configurations. These are:

•Internal Setpoint

•Domestic Priority

•Outdoor Air Reset

•Analog Input Setpoint

•Analog Input Direct Drive

CAUTION!

Do not modify any parameters other than those specifically mentioned.