Richmond RMTGHRH111DVLN User Manual

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AP18733 REV. 3.2.17

6. The wiring diagrams contained in this manual are to be used for reference purposes only.

7. Refer to these diagrams and the wiring diagrams of any external controls used with the installation when wiring the water heater. Read, under-

stand, and follow all wiring instructions supplied with the controls.

8. Do not disconnect the power supply when the water heater is in normal operation.

NOTE: For additional electrical protection, the use of a whole house surge protector is recommended. Damage caused by power surges is not

covered by the warranty.

NOTICE

If the water heater display does not come ON, rst check the plug. Also check the electrical panel circuit breaker and reset it if necessary. If the

circuit breaker trips again, do not reset. Disconnect the plug and have a qualied technician diagnose the problem.

▪ B. DIP SWITCHES

There is one DIP switch. DIP switches 6 and 7 need to be set to OFF for the water heater to operate normally.

– Dip Switch Detail (Factory Setting Shown)

DIP SWITCH OFF ON

1 – 3 Factory Use Only Factory Use Only

4 Factory Use Only Factory Use Only

5 Gas Type LP NG

6 High Fire Normal High Fire

7 Low Fire Normal Low Fire

DIP SWITCH GROUP

Table 22 – DIP Switch Group

SYSTEM CONTROL SETTINGS

MAXIMUM FLAME DETECTING VOLTAGE 2.5V

PRE-PURGE TIME (Tp) Maximum 10 seconds, minimum 1 second

SAFETY TIME (IGNITING TIME) (Ts) 3.5 seconds

IGNITING INTERVAL TIME <10 seconds

POST-PURGE TIME (Tip) 30 seconds

OVER-HEATING 1,2,3 PROTECTION DETECTION TIME <1 seconds

TEMPERATURE SENSOR FAULT DETECTION TIME <2 seconds

# OF IGNITION ATTEMPTS (Ntl) 10

DHW SET TEMPERATURE RANGE 100°F – 140°F (38°C – 60°C)

DHW OFF TEMPERATURE

DHW Target Temperature + DHW Differential Temperature 27°F (15°C)

DHW ON TEMPERATURE Below DHW Target Temperature 9°F (5°C)

DHW WATER ON MINIMUM WATER FLOW .5 gallons (2 liters) (12Hz)

DHW WATER OFF MINIMUM WATER FLOW .4 gallons (1.5 liters) (8Hz)

Figure 31 – Proper Grounding – Internal Manual Power Switch

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Richmond RMTGHRH111DVLN Encore 11 GPM 199,900 BTU Tankless Natural Gas Water Heater