Danger – Munchkin VWH High Efficiency Hot Water Supply Boiler User Manual

Page 32

F. STATUS MENU

Installers are also able to check the current status of the Munchkin parameters by pressing

S4/Reset

key for 3 seconds. Once activated, the display will show

alternating value of the actual outlet tem-

perature. Actual values are displayed for each function. To view the next value simply press the

S/4

key to go to the next displayed value. Listed below are the values which can be displayed. These val-
ues cannot be changed. To exit this menu, simply press

S3/Program

key to resume normal operation.

Function Value

d1/

Actual Temperature from outlet sensor

d2/

Actual Temperature from inlet sensor

d3/

N/A

d4/

N/A

d5/

N/A

d6/

Actual Fan speed multiplied by 10 (example: If fan speed displayed is
410 RPM x 10 = 4100 actual fan speed)

d7/

Actual Ionization current read from Flame Rectification probe

d8/

N/A

d9/

N/A

d10/

N/A

d11/

N/A

d12/

power on in 1,000 units

100 hrs = 0.1 / 1,000 hrs = 1.0
3,000 hrs = 3.0

d13/

N/A

d14/

Total Running Hours in 1,000 units

d15/

Total number of ignition cycles in 1,000 units.

G. TEST MODE

This function is intended to simplify the gas valve adjustment if needed. Listed below are the
recommended limits on each Munchkin Heater and the Combustion Settings. Automatic modulation
does not take place when the controller is in Test mode, only temperature limitation based on the
Munchkin Central Heating set point. The user will be allowed to increase or decrease the fan speed
by pressing in either the

S1/-

S2/+

keys.

To activate the Test mode simply press the

S2/+

and

S3/Program

key together for 1 second. Once

activated, you will see in the display

Ser

and the actual fan speed. The measurement of the

combustion levels should always be taken at the highest and lowest fan speed. After 10 minutes, the
Test mode stops automatically. To exit Test Mode press

S1/-

and

S2/+

key together for 1 second.

START-UP PROCEDURES

DANGER

Water temperature over 125 degrees F. can cause severe burns
instantly, or death from scalds. Children, disabled, and elderly
are at highest risk of being scalded. See instruction manual
before setting temperature at water heater. Feel water before
bathing or showering! Temperature limiting valves are available.

Set Point Adjustment

Function

Display

Default Setting

Range of Adjustment

Temperature Set Point

119° F

95° F/185° F

Differential Set Point

8° F

1–18° F

Temp. Measurement

Fahrenheit to Celcius

F or C