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- NP-180A
- Operation & Installation Manual
Navien NP-180A Operation & Installation Manual
NR-180(A)
NP-180(A)
NR-210(A)
NP-210(A)
NR-240(A)
NP-240(A)
Navien Condensing Water Heater Manual
- WHAT TO DO IF YOU SMELL GAS
Do not try to light any appliance.
Do not touch any electrical switch: do not use any phone in your building.
Immediately call your gas supplier from a neighbor’s phone. Follow the gas supplier’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 “Manual” to the customer after installing.
If the information in these instructions is not followed exactly, a fire or
explosion may result causing property damage, personal injury or death.
This product warranty is valid only used in the
America and Canada
but automatically be voided for other countries. (for
America and
Canada
unit standard only)
- Do not store or use gasoline or other flammable vapors and liquids in the vicinity
of this or other appliance.
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Summary of NP-180A
Page 1
Nr-180(a) np-180(a) nr-210(a) np-210(a) nr-240(a) np-240(a) navien condensing water heater manual - what to do if you smell gas do not try to light any appliance. Do not touch any electrical switch: do not use any phone in your building. Immediately call your gas supplier from a neighbor’s phone. Fo...
Page 2: Contents
Contents contents safety instruction 3 accessories and optional accessories 7 specification 9 component & dimensions - key components : nr-a 10 - key components : np-a 11 - dimensions : nr-a, np-a 12 - key components : nr 13 - key components : np 14 - dimensions : nr, np 15 installation 16 operation...
Page 3: Safety
Safety safety-related information and instructions have been provided in this manual and on the navien water heater to warn any person(s) of potential hazards. Read and follow all safety information and instructions throughout this manual. It is very important to understand the safety instructions b...
Page 4: Safety
Safety safety instructions: 4 this product must be installed and serviced by a licensed plumber, a licensed gas fitter, or a professional service technician. Improper installation and/or operation or installation by an unqualified person will void the warranty. Warning warning safety precautions rea...
Page 5: Safety Instructions:
Sa fe ty safety instructions: 5 this.
Page 6: Safety
Safety safety instructions: 6 improper venting may cause a build-up of carbon monoxide (co). Breathing carbon monoxide can cause brain damage or death. Read and follow the above instructions carefully. If the information in these instructions is not followed exactly, a fire or explosion may result c...
Page 8: Accessories
Accessories accessories and optional accessories 8 contact your navien water heater supplier for optional accessories. 2. Optional accessories: description item navien plumb easy valve set navien pressure relief valve navien condesate neutralizer navien ready-link communication cable.
Page 9: Specifications
Specifications 9 specifications please review these specifications before installation to confirm proper unit selection: as navien is dedicated to continuous product improvement, navien reserves the right to change specifications and/or design and/or discontinue any model or feature without prior no...
Page 13: Sio
C o m po n en ts & d im en sio n s 13 key components: nr no description navien part no. No description navien part no. 1 intake duct bh2505400b 17 transformer bh1205008a 2 fan motor nafa9glpct01 18 exhaust limit switch bh1401027a 3 flow sensor aass9exfs003c 19 secondary h/e - 4 power switch bh142600...
Page 14: Key Components: Np
C o m po n en ts & d im en si o n s key components: np 14 no description navien part no. No description navien part no. 1 intake air duct bh2505400b 17 transformer bh1205008a 2 fan motor nafa9glpct01 18 exhaust limit switch bh1401027a 3 flow sensor aass9exfs003c 19 secondary h/e - 4 power switch bh1...
Page 16: Installation
Installation warnings 17 getting stated 18 check rating plate 19 locating the water heater 20 mounting the unit to the wall 21 plumbing - plumbing and water connection guidelines 22 - water piping guidelines 23 pressure relief valve 24 disposal of condensate 25 condensate drain & cleaning 26 gas pip...
Page 18: Installation
Installation getting started: 18 the appliances comply with scaqmd 2012 requirements. Nox emission level of less than 14 nanograms of nox (calculated as no ) per joule of heat output or less than or equal 20 ppm of nox emissions (at 3% o , dry). 2 2.
Page 20: Installation
Installation locating the water heater: 20 or follow local codes..
Page 22: Installation
Installation plumbing: plumbing and water connection guidelines 22 and recirculation water inlet(only “a” model) are recommended. Piping and components connected to the water heater for the space heating application shall be suitable for use with potable water. Water heaters for combination water/sp...
Page 24: Installation
Installation pressure relief valve: 24 pressure relief valve shut-off valve.
Page 27: Installation
Installation 27 gas piping: navien recommends the water heater be the first appliance installed downstream of the gas meter to ensure it will have sufficient gas supply. Use the charts on the following pages to properly size the gas supply line. The gas connection fitting on all navien units is ¾”. ...
Page 28: Installation
Installation 28 -. 2lb system 1. The minimum and maximum inlet gas pressures are: natural gas min. 5.0” wc - max. 10.5” wc propane gas min. 8.0(9.0 : 180)” wc - max. 13.5” wc 2. Gas pressures over and above the specified ranges will result in adverse performance and dangerous operating conditions, a...
Page 29: Installation
Installation 29 gas pipe sizing chart: referenced from uniform plumbing code 1997 3/4" 363 249 200 171 152 138 127 118 111 104 93 1" 684 470 377 323 286 259 239 222 208 197 174 1 1/4" 1,404 965 775 663 588 532 490 456 428 404 358 1 1/2" 2,103 1,445 1,161 993 880 798 734 683 641 605 536 2" 4,050 2,78...
Page 30: Installation
Installation measuring inlet gas pressure: 30 procedure to measure the inlet gas pressure: 1. Shut off the manual gas valve on the supply gas line. 2. Open a hot faucet. The unit should turn on and the gas in the gas pipe line should purge. Leave the faucet on to keep the unit running until the unit...
Page 32: Installation
Installation venting: 32 ground or local codes..
Page 33: Installation
Installation 33 venting:.
Page 35: Tio
In st a ll a tio n 35 venting clearances: 1 natural natural.
Page 36: Installation
2 24’ installation venting: 36 6 3 6 3 navien does allow the reduction from 3” to 2” diameter venting up to 2,000 feet above sea level. Installations above 2,000 feet all require 3” venting..
Page 37: Installation
Installation 37 venting: indoor installation.
Page 38: Installation
Installation venting: 38 12” min exhaust 12” minimum from any obstruction (above, below, left or right) intake.
Page 39: Installation
Installation 39 venting: concentric vent termination 1. Sidewall installation 2. Roof installtion.
Page 40: Installation
Installation venting: 40
Page 41: Tio
In st a ll a tio n 41 the additional safety issues outlined below must also be followed completely when installing this navien water heater: vent terminal should not be pointing toward any opening of the building or windows. Do not install the water heater in crevices to prevent gas from accumulatin...
Page 44: Installation
Installation pcb board settings: 44.
Page 45: Installation
Installation 45 cascade connection and set-up procedures:.
Page 46: Installation
Installation 46.
Page 47: Installation
Installation 47.
Page 48: Installation
Installation 48 5.Case v. Dhw storage tank mode [1 unit + dhw storage tank ] [cascade system + dhw storage tank] install the storage tank and pump in the exterior, and when it comes to exterior circulation pump control system(aqua-stat) that are controlled by the temperature of the tank, setup to ex...
Page 49: Installation
Installation 49 may vary according to user’s environment changes mentioned below. 1) dhw storage tank’s stoppage. -. Able to change cascade connected water heater’s stoppage temperature. -. Combustion stoppage temperature = dhw setup temperature – r/c combustion stoppage setup value 2) cascade on un...
Page 51: Installation
Installation 51 exhaust blind condensate drain intake caution: one short radius elbow = 8 feet, one long radius elbow = 5 feet total length (l) = h + w required load (btuh) model nr-180(a) nr-210(a) nr-240(a) d=3” d=4” d=5” d=6” total length(l: max. Ft) till 300,000 2 50 90 100 - till 330,000 1 1 50...
Page 52: Installation
Installation 52 6. Cascade system plumbing pipe size (@ nr/np-240(a)) q’ty 1 7.19 4.78 20a 3/4” 16 115.07 5.44 80a 3” 2 14.38 5.61 25a 1” 17 122.26 5.81 80a 3” 3 21.57 5.54 30a 11/4” 18 129.45 6.14 80a 3” 4 28.77 5.21 40a 11/2” 19 136.64 6.46 80a 3” 5 35.96 6.53 40a 11/2” 20 143.83 6.83 80a 3” 6 43....
Page 53: Installation
Installation 53 step 3: cable connection and dip switch change the water heater unit can be connected with other units up to 16 units using communication cables. After choosing one of the units as the master unit, connect the cables and change the dip switch 2 on the pcb as below. During step 1, the...
Page 54: Installation
Installation 54 - the diagram above displays the master unit and slave unit connected with the ready link commnication cable step 4: communication set-up after the cable connections and dip switch set-up, the communication set-up should be done. Master set-up after the power on, each fnd1 will displ...
Page 55: Installation
Installation 55.
Page 56: Installation
Installation 56.
Page 60
In st a ll a ti o n factory setting of dip switch: 60 set of 4 switches (no.5 switch): 1 2 3 4 on 1 2 3 4 on no model dip s/w #4 on off 1 dhw storage tank or solar system mode select dhw storage tank or solar system normal operation.
Page 62: Installation
Installation 62 gas supply pressure relief valve ● is there an approved pressure relief valve installed on the hot water outlet? ● does the rating plate on the pressure relief valve indicate a btu level equal to the maximum btu rating of the water heater? ● is the pressure relief valve ¾”? ● has the...
Page 64: Installation
Installation 64 dip switch settings final ● has the owner been advised of the minimum flow rate to trigger the burner (if not using the nr-“a” or np-“a” series)? ● has the owner been shown how to clean the inlet water filter? ● has the owner been left with the operation and installation manual for f...
Page 66: Operation
Operation safety instructions: 66 households with small children, disabled, or elderly persons may require 120°f or lower temperature setting to prevent contact with “hot” water. Water temperatures over 125°f can cause severe burns instantly or death from scalds. If the proposed water heater outlet ...
Page 67: Operation
Operation 67 navien warranty: general applicable warranty periods (* dhw means domestic hot water) navien america, inc. (navien) warrants this navien water heater and its component parts to be free from defects in materials and workmanship, under normal use and service, for the applicable warranty p...
Page 68: Operation
Operation navien america, inc. Limited warranty: 68 (12 grains of hardness may).
Page 69: Operation
Operation 69 model description & legend:.
Page 70: Operation
Operation general parts: 70 condensate water.
Page 71: Operation
Operation 71 general parts: condensate water.
Page 72: Operation
Operation remote controller: 72 hot water ‘in use’ indicator.
Page 73: Operation
Operation 73 remote controller set-up instructions: turning the remote controller on/off to turn the remote controller “on”, press the power button. To turn the remote controller “off”, press the power button again. Model without the clock indication function will have the clocks turn off as well wh...
Page 74: Operationoperation
Operationoperation setting the clock: 74 hour : minute.
Page 75: Operation
Operation 75 adjusting the temperature: use the remote controller to adjust the outlet water temperature of the navien water heater. To adjust the hot water temperature, all hot water taps must be closed, the internal circulator must be off and any external circulating pumps must also be turned off....
Page 76: Operation
Operation hot water temperature adjustment: 76 press the ᴭ# # # (up) or ᴭ# # # (down) button to scroll until the desired temperature is displayed on the lcd monitor. When the power is “on”, the set temperature will be displayed on the remote controller. When the power is “off”, only the time will be...
Page 77: Operation
Operation 77 hot water temperature adjustment: each time (up) key is pressed for 3 seconds, temperature increases by 5°f. When the desired temperature is reached, leave alone and it will automatically set. Each time (down) key is pressed, temperature decreases by 5°f. Each time pro key is pressed fo...
Page 78: Operation
Operation 78 (unit : °f) once a temperature is selected, the unit will operate at that selected temperature until that temperature is changed. A navien water heater will not provide hot water instantly at the hot water fixture unless an “a” series unit in used with “external recirculation” mode. Any...
Page 79: Operation
Operation 79 “a” series recirculation timer setting: 74.
Page 80: Operation
Operation 80 when you press the function button at a desired recirculation start time, a ‘ ’ mark will appear meaning, that you are setting that time period for a circulation. After the black box mark appears, it will automatically go to the next time period, asking you if you want a circulation at ...
Page 81: Operation
Operation 81 lock function setting:.
Page 82: Operation
Operation well pump setting function: 82.
Page 83: Operation
Operation 83 function to set the number of initial activating water heaters when cascade is used: this is a function to decide the number of initial activating water heaters when multiple water heaters are connected together in a cascade..
Page 84: Operation
Operation 84 pump activation setting function when hot water is used: this function allows the internal pump to turn on or off (a series models only) when hot water is being used..
Page 86: Operation
Operation 86 4. Press the “ ” or “ ” button to adjust to desired values. 5. Press the “ ” button and “lock” button together for 3 seconds 6. Press the “ ” or “ ” button and change it to desired value. Press the “ ” or “ ” button to adjust desired cascade off unit value. The value may be adjusted wit...
Page 87: Operation
Operation 87 applications: on all “a” series, there are two pre-heating modes the unit can operate in: internal recirculation mode or external recirculation mode. The desired mode is selected by manually adjusting a 3-way valve inside the unit and adjusting the dip switches on the pcb board..
Page 88: Operation
Operation “a” series internal recirculation mode: 88 dip-switch setting for internal recirculation mode location of the 3-way valve.
Page 89: Operation
Operation 89 “a” series external recirculation mode:.