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Navien CH-180, Operation Manual

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Navien CH-180 Operation Manual Download Page 29

Combination water heater operation 

 

29 

█  Function  to  set  pump  activating  water 

heaters when cascade is used. 

 

 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Please  turn  off  the  power  of  Remote 
Controller 

by 

pressing 

ON/OFF 

button. 

Press  and  hold 

“DHW”,  “Stand  By” 

and 

“Heating”  buttons  simultaneously 

for 3 seconds. 

 

 

 

 

When  the  current  setting  state  (C-
disable,  S-enable)  is  blinking,  Press 

“Heating” button to change  its setting 
value. 

Press 

“Program”  button  to  complete 

setting. If setting is completed  Remote 
Controller will return 

“OFF” state. 

 

 

OPERATING INSTR

UCTIONS

 

OPERATING INSTR

UCTIONS

 

Summary of Contents for CH-180

Page 1: ...r s instructions If you cannot reach your gas supplier call the fire department Installation and service must be performed by a qualified installer service agency or the gas supplier Please return the...

Page 2: ...s 20 K Factor Options 20 Program 24 th Timer 21 Stand By 22 Lock 22 Heat Capacity Control 23 Capacity Control of the Whole 24 Setting up the Way of Control of Hot Water 25 Well Pump Setting 26 Supply...

Page 3: ...sult in injury or death Indicates a potential hazardous situation which if not avoided could result in injury or death Indicates an imminent hazardous situation which if not avoided may result in mino...

Page 4: ...heater unless it is specifically recommended in this manual All other servicing should be referred to an Authorized Service Technician Make certain power to the Combination Water Heater is turned OFF...

Page 5: ...r under such condition may cause fire or carbon monoxide CO poisoning which may result in property damage personal injury or even death Vapors from flammable Water heater has a main liquids will explo...

Page 6: ...orized by your gas supplier or the fire department Failure to follow the Venting Section of the installation manual may result in the unsafe operation of this combination water heater To avoid the ris...

Page 7: ...emperatures over 125 F can cause severe burns instantly or death from scalds If the proposed combination water heater outlet temperature is above 125 F a thermostatically controlled mixing valve or te...

Page 8: ...of combustion from re entering the building through the open flue the gas supply will be automatically cut off An error code will appear on the room Refer to troubleshooting guide for further informa...

Page 9: ...htning Protection Each combination water heater is specially grounded internally and externally to protect against lightning strikes 13 Carbon Monoxide Protection The combination water heater is desig...

Page 10: ...CABLE WARRANTY PERIODS Period of Coverage Heat Exchanger All other Parts and Components 10 years 5 years EFFECTIVE DATE The Effective Date of warranty coverage the beginning of the Applicable Warranty...

Page 11: ...ailures caused by conversion from natural gas to LP gas or LP gas to natural gas or attempt to operate with a type of gas not specified for the combination water heater Damages malfunctions or failure...

Page 12: ...Clean outlet Cold Water Inlet Connection Hot Water outlet Connection Heating Return Connction Heating Supply Connection Water Inlet Filter Strainer Pump Drain Port Water Inlet Filter Gas Connection A...

Page 13: ...Combination water heater operation 13 Remote Controller OPERATING INSTRUCTIONS...

Page 14: ...re set Clock Space heating Return water temperature Temperature Space heating Supply temperature 24 Hour heating timer indicator THERMOSTAT controlled heating Lock Hot water In use Stand By Hot water...

Page 15: ...his status any heating mode DHW are disabled Setting the Clock Press and hold Program button for 3 seconds the minutes blink on the timer Use the center dial to move around the minutes and tap the Pro...

Page 16: ...is displayed If temperature over 120 is needed DHW and Heating button shall be pressed simultaneously Then user can adjust set temperature of hot water up to 140 When the hot water icon flickers turn...

Page 17: ...aneously for 3 seconds When the Clock is flashing with the cursor use the center dial to move the cursor around Tap the Heating button to enable solid or disable blank the specified time frame After s...

Page 18: ...oom temperature heating icon appears Leave alone and the display will automatically set Tap Heating and when room temperature heating icon is blinking use the center dial to set the desired temperatur...

Page 19: ...lay will automatically set Tap Heating and when Return temperature heating icon is blinking use the center dial to set the desired temperature between 90 140 Leave alone and the display will automatic...

Page 20: ...ing use the center dial to set the desired temperature between 105 185 Leave alone and the display will automatically set K Factor Option Tap Heating until K Factor icon appears Leave alone and the di...

Page 21: ...g with the cursor use the center dial to move the cursor around Tap the HEATING button to enable solid or disable blank the specified time frame When a block is solid the unit is enabled for that time...

Page 22: ...will disappear and the display will return to its original state Lock This feature is a safety feature to prevent children from altering the settings which may in turn lead to harmful activity by the...

Page 23: ...er With the remote Controller off press and hold the DHW and Stand By button simultaneously for 3 seconds The black cursor should make 1 revolution around the clock and the heat capacity will be displ...

Page 24: ...tand By buttons are pressed simultaneously the system goes into HEAT CAPACITY CONTROL mode At this time press the DHW and Heating button simultaneously for 3 seconds Then the clock rotates clockwise a...

Page 25: ...off the power of Remote Controller by pressing ON OFF button If the program and heating button are pressed simultaneously for 3 seconds supply water or return water heating icon flickers At this time...

Page 26: ...the DHW button is pressed for 3 seconds IL P is displayed inside the clock and C or S is flickered where the temperature is displayed C means there is no WELL PUMP If the Well Pump setting needs to b...

Page 27: ...sing ON OFF button If the heating button is pressed for 3 seconds PS is displayed inside the clock and desired supply water pressure is flickered where temperature was displayed At this time rotate di...

Page 28: ...ntroller by pressing ON OFF button Press and hold DHW Stand By and Program buttons simultaneously for 3 seconds When number of operation is blinking on display panel rotate dial to select the number o...

Page 29: ...ssing ON OFF button Press and hold DHW Stand By and Heating buttons simultaneously for 3 seconds When the current setting state C disable S enable is blinking Press Heating button to change its settin...

Page 30: ...some cases this thermostat may not be suitable for multi system applications The installing contractor will make this determination and install suitable alternative controls OPERATING INSTRUCTIONS OP...

Page 31: ...e design it can provide hot water on demand The Navien Combination Water Heater only produces Hot Water only when you use it OPERATING INSTRUCTIONS Primary Heat Exchanger Secondary Heat Exchanger Main...

Page 32: ...ace stains Cleaning the Remote Controller Wipe the surface with a damp cloth The remote controller is moisture resistant but NOT water proof Keep it as dry as possible MAINTENANCE Make sure the unit i...

Page 33: ...e the gas valve 3 Close the water supply valve on the inlet to the unit If there is no valve turn off the water supply at the water meter 4 Open the pump drain coke on the pump and allow the water to...

Page 34: ...the water supply at the water meter slowly 3 Inspect and make sure there is no water leaking 4 The combination water heater has an automatic feeder to fill water to the space heating side It will fill...

Page 35: ...ure below You will need to prepare a bucket to collect some of the draining water 1 Turn off the power to the unit 2 Close the water supply valve on the inlet to the unit 3 Twist and remove the DHW co...

Page 36: ...he Strainer Strainer Increases heating performance by filtering impurities from the system When heating performance is decreased clean the filter by removing clip Removing filter washing out and re in...

Page 37: ...areas on the diagram to the right Make note of which screw is taken Once the screws are removed then pull it out towards the front 3 Remove the filter from the bottom of the intake air duct Remove th...

Page 38: ...opriate heating water temperature at a customized desired setting The outdoor reset control operation K Factor when enabled by connecting to the Navien CH unit can ensure that the system does not wast...

Page 39: ...cted directly from the combination water heater collars top of unit to the outdoors This Direct Vent type installation will minimize any air movement within the unit 1 Do not unplug the electric power...

Page 40: ...ble Cause s What to do There is no water at all when the hot water tap is opened Is the cold water filter clean Is the unit display flashing an error code Is the unit frozen Make sure the shut off val...

Page 41: ...ing button and raise the setting temperature Is the 24 hour timer set correctly Make sure the current time setting is correct Then adjust the timer settings to where the system is desired to run Is th...

Page 42: ...e the thermostat E007 DHW Hot water supply thermostat open 1 Check the thermostat 2 Replace the thermostat E008 DHW Hot water supply thermostat short 1 Check the thermostat 2 Replace the thermostat E0...

Page 43: ...side 1 Check pipes on heating side E030 Exhaust Overheat exhaust high limit switch shuts down the unit when the flue temperature exceed 149 F 65 C 1 Turn OFF the system for at least 30 minutes then re...

Page 44: ...Combination water heater operation 44 Memo MEMO TROUBLESHOOTING ERROR CODE GUIDE...

Page 45: ...Combination water heater operation 45 Memo M E M O MEMO Memo...

Page 46: ...Combination water heater operation 46 Printed Date xx Month xx Day xxxx year...

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