Munchkin Gas-Fired Hot Water Circulating Heater Test Mode, Programming the Vision I Option

GAS-FIRED HEATER Installation Manual

PART 12. START-UP PROCEDURE (CONTINUED)

Function Value

d4 — Not used

d5 — Actual Temperature from the outdoor sensor. (Vision option.)

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 — Actual Status of the Central Heating Circulator Off = 0, On = 1. (Vision option.)

d9 — Actual Status of the Indirect Fired Circulator Off = 0, On = 1. (Vision option.)

d10 — Actual Status bus communication co = connected, no = not connected

d11 — Central Heating Set Point

d12 — Power On Hours in units

d13 — Total Central Heat Hours

d14 — Total Indirect/dhw Hours

d15 — Passed Ignition Attempts

D. TEST MODE

This function is intended to simplify the gas valve adjustment if needed. Listed below are the

recommended limits on each Munchkin Contender and the Combustion Settings. Automatic modulation does not take place when the controller is in Test mode, only temperature limitation based on the Munchkin Contender Central Heating set point. The user will be allowed to increase or decrease the fan speed by pressing in either the {S1/-or {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 com- bustion levels should always be taken at the high- est 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.

Fig. 12-1

COMBUSTION SETTINGS

HIGH FIRING RATES and LOW FIRING RATES ON ALL MODELS

	Natural Gas		Propane LP
	low	high	low	high
Carbon
Monoxide	0–20 ppm	70 ppm–135 ppm	0–20 ppm	80 ppm–150 ppm
(CO %)
Carbon
Dioxide	8½% – 9½%	8½% – 9½%	9½% – 10½%	9½% – 10½%
(CO2 %)

PART 13: START-UP PROCEDURES WITH THE VISION 1 OPTION

The Vision I option allows the user to have one temperature for central heating and another temperature for the Super Stor Ultra Indirect Fired Water Heater. This allows the user to increase the temperature supplied to the Super Stor Ultra indirect water heater to get a fast recovery by prioritizing the flow at a higher tem- perature than may be needed for the Central Heating Circuits (this will require two separate circulators). Once the Super Stor Ultra Indirect is satisfied, the Vision I system will switch back to the Central Heating Circuit to continue to heat the living space at a temperature based on out- side temperature. This gives you a higher com- fort level and further increases the efficiency of the Munchkin Contender.

A. PROGRAMMING THE VISION I OPTION

The Vision I option allows the installer to set sys- tem limits and the heat curve for the Munchkin Contender. These system limits should not be changed by the user. It is important to document your settings within this manual after you pro- gram the sytem parameters so this will be recorded for future reference.

B. VISION 1 PROGRAM ACCESS

To start, press down and hold the {S/3} and {S/4} simultaneously for three seconds. You will notice that the display will change to 000. Then, with your {S1/-}key on the display press down until you see 925. This is the pass code. To confirm that

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