Rinnai REU-V2520FFUD User Manual
Operation / Installation Manual
To Suit Models:
REU-V2520FFU........ R53
REU-V2520FFUC..... C53
REU-V2532FFU........ R85
REU-V2532FFUC...... C85
REU-V2520FFUD......
REU-V2520FFUCD... C53PLUS
REU-V2532FFUD...... R85PLUS
REU-V2532FFUCD... C85PLUS
(Residential and Commercial indoor unit)
R53PLUS
ANS Z21.10.3=CSA 4.3
WARNING: If the information in these instructions is not followed exactly, a re
or explosion may result causing property damage, personal injury or death.
– Do not store or use gasoline or other flammable vapors and liquids in the vicinity
of this or any other appliance.
– 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.
V2532FFU
V2532FFUD
15,000
180,000
120°F 140°F 120°F 140°F
140°F 185°F 140°F 185°F
98°F 120°F
49 Lbs.
87%
49 dB (A)
Normal
75 watts
Standby
5.5 watts
Anti-frost Protection
100 watts
Electronic Fixed None
Natural Gas
6" W.C.
Propane
10" W.C.
Natural Gas
10.5" W.C.
Propane
13.5" W.C.
Ignition System
Water Temperature Control
Water Supply Pressure
Electric Connections
Minimum Water Pressure: 20 PSI (Recommended 30-80 PSI for maximum performance)
Safety Devices
Maximum Water Supply Pressure
Remote Control Cable
Flame Failure - Flame Rod
Boiling Protection - 210°F
Over Current - Glass Fuse (3 amp)
Remaining Flame (OHS) 207°F Bi-Metal Switch
Thermal Fuse 264°F
Direct Electronic Ignition
Appliance: AC 120 Volts, 60Hz. Remote Control: DC 12 Volts (Digital)
Simulation Feedforward and Feedback.
Gas Supply: 3/4" MNPT, Cold Water Inlet: 3/4" MNPT, Hot Water Outlet: 3/4" MNPT
Model
Minimum Gas Consumption Btu/h
Maximum Gas Consumption Btu/h
With or without remote controls, mounted in kitchen, bathroom, ect.
Connections
By-Pass Control
Minimum
Gas Supply
Pressure
Maximum
Gas Supply
Pressure
Type of Appliance
Operation
Exhaust System
Approved Gas Type
Electrical
Consumption
Hot water capacity, (50°F rise)
Hot water capacity, (35°F rise)
Default Temperature Setting (no controller)
Maximum Temperature Setting
Minimum Temperature Setting
Weight
Noise level
Efficiency Rating
Automatic Frost Protection - Bi-Metal Sensor & Anti-Frost Heaters
Combustion Fan RPM Check - Integrated Circuit
150 PSI
Non-Polarized Two Core Cable
0.6 to 5.3 GPM
0.6 to 5.3 GPM
Direct Vent - Forced Combustion
Natural Gas or Propane - Ensure unit matches gas type it's being installed on.
0.6 to 6.5 GPM
0.6 to 8.5 GPM
Temperature controlled continuous flow gas hot water system.
104°F 140°F 104°F 140°F
Controller Default Temperature Setting
V2532FFUC
V2532FFUCD
V2520FFU
V2520FFUD
V2520FFUC
V2520FFUCD
S P E C I F I C A T I O N S
NOT E: Rin na i is con ti nua ll y up da ti ng a nd i mp rov in g pr od uct s, the re fo re, spe ci fi cat io ns are
subject to change without prior notice. Local, state, provincial and federal codes must be adhered
to prior to installation.
Rinnai America
2
FF Models
L I M I T E D W A R R A N T Y
R i n n a i W a t e r H e a t e r
WHAT IS COVERED?
This Warranty covers any defects in materials or workmanship when the product is installed and
operated according to Rinnai written installation instructions, subject to the terms within this limited
warranty document. This Warranty applies only to products that are installed by a state qualied
or licensed contractor. Improper installation may void this Warranty. Rinnai strongly suggests
that you use an installer who has attended a Rinnai product knowledge class before installing
this water heater. This Warranty extends to the original purchaser and subsequent owners, but
only while the product remains at the site of the original installation. This Warranty only extends
through the rst installation of the product and terminates if the product is moved or reinstalled at
a new location.
HOW LONG DOES COVERAGE LAST?
Warranty031705COMM-V2
Item
Commercial Residential
Heat Exchanger 5 Years* 10 Years*
All other Parts and
Components
Reasonable Labor 1 Year
Period of Coverage
5 Years* 5 Years*
*Important
Period of coverage is 3 years from date of purchase when used as a circulating water heater
within a hot water circulation loop, when the water heater is in series with a circulation system
and all circulating water ows through the water heater.
WHAT WILL RINNAI DO?
Rinnai will repair or replace the product or any part or component that is defective in materials
or workmanship, except as set forth below: Rinnai will pay reasonable labor and shipping costs
to repair the product. All repairs must be performed using genuine Rinnai parts. All repairs or
replacements must be performed by an individual or servicing company that is properly trained,
state qualied or licensed to do this type of repair.
Replacement of the product or replacement of the heat exchanger may be authorized by Rinnai
only. Rinnai does not authorize any person or company to assume for it any obligation or liability
in connection with the replacement of a product or heat exchanger. If Rinnai determines that
repair of a product is not possible, Rinnai will replace the product with a comparable product, at
Rinnai’s discretion. If a component or product returned to Rinnai is found to be free of defects in
material or workmanship, or damaged by improper installation or damaged during return shipping,
the warranty claim for product, parts and labor may be denied.
Rinnai America
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FF Models
L I M I T E D W A R R A N T Y
Ri nn ai Wat er H ea te r
Warranty031705COMM-V2
HOW DO I GET SERVICE?
Simply contact a qualied Service Dealer or Installer for the repair of products under this Warranty.
Failure to use a qualied Service Dealer or Installer to provide repair service may void the
Warranty. For the name of the qualied Service Dealer or Installer nearest you, please contact
the company that installed the water heater, or;
Your local HVAC/plumbing dealer, gas service technician or place of purchase
•
Visit the Rinnai website www.rinnai.us
•
Call Rinnai at 1-800-621-9419 or write to Rinnai, 103 International Drive, Peachtree City, Georgia
•
30269
Proof of purchase is required to obtain warranty service. You can show proof of purchase with a
dated sales receipt, by completing and mailing the enclosed Warranty registration card within 30
days of purchasing the product or by registering online at www.rinnai.us . Please complete the
Warranty registration either online or mail it to Rinnai at the address shown on the card.
Receipt of warranty registration by Rinnai will constitute proof-of-purchase for this product.
However, Warranty registration is not necessary in order to validate this Warranty.
WHAT IS NOT COVERED?
This Warranty does not cover any failures or operating difculties due to accident, abuse, misuse,
alteration, misapplication, acts of God, improper installation, improper maintenance or service,
inadequate water quality, scale buildup, freeze damage or for any other causes other than defects
in materials or workmanship. This warranty does not apply to any product whose serial number or
manufacture date has been defaced. This Warranty does not cover any product when used as a
pool or spa heater. (See Water Quality in Care & Lime Section.)
Rinnai is not liable for any special, incidental, indirect or consequential damages that may arise,
including damage to person or property, loss of use, failure to install drain pan under unit, or
inconvenience. Some states do not allow the exclusion or limitation of incidental or consequential
damages, so the above limitation may not apply to you.
LIMITATION ON IMPLIED WARRANTIES
Any implied warranties of merchantability and tness arising under state law are limited in duration
to the period of coverage provided by this limited Warranty, unless the period provided by state law
is less. Some states do not allow limitations on how long an implied Warranty lasts, so the above
limitation may not apply to you.
This Warranty gives you specic legal rights, and you may also have other rights which vary from
state to state.
Rinnai America
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FF Models
C O N T E N T S
Specications .... ... .... ... .... ... .... ... .... ... .... ... .... ... .... ... .... ... .... ... .... ... ... 2
Limi ted Warra nty .. ... .... ... .... ... .... ... .... ... .... ... .... ... .... ... .... ... .... ... .... 3,4
Owne r ’s I nsta lla tion In for mati on ... ... .... ... .... ... .... ... .... ... .... ... .... ... ... 6
Feat ure s of Your New Wate r He ate r ... ... .... ... .... ... .... ... .... ... .... ... ... 7
Safe ty Issue s . ... .... ... .... ... .... ... .... ... .... ... .... ... .... ... .... ... .... ... .... ... .... .. 8
Basi c O pera tio n ...... .... ... .... ... .... ... .... ... .... ... .... ... .... ... .... ... .... ... .... ... 9
Abou t H ot Water ... .... ... .... ... .... ... .... ... .... ... .... ... .... ... .... ... .... ... .... ... 10
Scal ds- Firs t A id ... .... ... .... ... .... ... .... ... .... ... ... .... ... .... ... .... ... .... ... .... .. 1 0
Gene ral Con tro ller In for mati on ....... ... .... ... .... ... ... .... ... .... ... .... ... ... 11
Remo te Contr oll er Opera tio n ... ... .... ... .... ... .... ... .... ... .... ... .... ... .... .. 1 2
Delu xe Contr oll er .. .... ... .... ... .... ... .... ... .... ... .... ... .... ... . 13, 14, 15,1 6,1 7
Cont rol lers Se t P atte rn/ Temper atur e Table s . .... ... .... ... .... ... .... ... .. 1 8
Erro r M essa ges .. .... ... .... ... .... ... .... ... .... ... .... ... .... ... .... ... .... ... .... 19 ,20
Main ten ance & Serv ice Info rmat ion .... .... ... .... ... .... ... .... ... .... .. 21 ,22
Trouble Sh oot ing and Comm on Q ues tion s ..... ... .... ... .... ... .... ... ... 23
For Your Sa fety Re ad Befor e O per atin g ....... ... .... ... .... ... .... ... .... . 2 3
Oper ati ng I nst ruct ion s ..... ... .... ... ... .... ... .... ... .... ... .... ... .... ... .... ... .... . 24
Care & Lime Con dit ion Warning ... .... ... .... ... .... ... .... ... .... ... .... ... .. 2 4
Inst all er ’s I nst ruct ion s ... ... .... ... .... ... .... ... .... ... .... ... .... ... .... ... .... 2 5-5 0
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O W N E R ’ S I N S T A L L A T I O N I N F O R M A T I O N
All R innai wate r hea ter( s) MU ST be installed by a state qualied or licensed
cont racto r. F ailu re to comp ly wi th st ate a nd lo cal c odes pert aini ng to w ater
heat er ins tall atio ns ma y voi d the warr anty on yo ur ne w wat er he ater (s). It is
the r espon sibi lity of th e per son h avin g the wate r hea ter i nsta lled to en sure
the i nstal ling cont ract or ha s pro per l icen ces a nd pe rmit s for inst alli ng
wate r heat er(s ) in y our l ocat ion. In ad diti on to lice nsin g and perm its, Rinna i
enco urage s all inst alli ng co ntra ctor s to a tten d a pr oduc t kno wled ge cl ass
befo re ins tall ing a ny of our w ater heat ers t o hel p ins ure m axim um cu stom er
sati sfact ion a nd ma ximu m war rant y cov erag e. Fa ilur e to c ompl y wit h sta te
and l ocal c odes may r esul t in n on-c ompl ianc e and may v oid t he wa rran ty of
the w ater h eate r(s) .
This appl iance mus t be ins talled in accordance with local codes, or i n the ab-
sence of local codes, the National Fuel Gas Code, ANSI Z223.1/NFPA 54 and/or
the CSA B149.1, Natural Gas and Propane Installation Code.
Inst all th is pr oduc t ind oors ONLY, DO NOT inst all o utdo ors.
Do No t use t his a ppli ance if an y par t has been unde rwat er. Immed iate ly ca ll
a qualied service technician to inspect the appliance and to replace any
part of the cont rol s yste m and any g as co ntro l whi ch ha s bee n und erwa ter.
Deta iled i nstr ucti ons o n the prop er in stal lati on pr acti ces t o fol low f or the
inst allat ion o f you r new hot w ater heat er(s ) are incl uded at th e bac k of t his
manu al.
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FF Models
F E A T U R E S O F Y O U R N E W W ATE R H E AT E R
T he Ri nnai Water He ater is on e of t he mo st ad vanc ed wa ter h eate rs ava ilab le.
?
It su pplie s hot wate r con tinu ousl y at t he te mper atur e pre set i n the unit or at t he
temp eratu re se t on t he op tion al re mote cont roll er(s ). In stal lati on of remot e con trol ler( s)
are r ecomm ende d for opti mum p erfo rman ce.
T he Ri nnai Water He ater neve r run s out of ho t wat er. W hile elec trici ty, w ater and g as
?
supp lies a re co nnec ted, the R inna i Water H eate r pro duce s hot wate r whe neve r the hot
tap i s open .
T he ga s bur ner l ight s aut omat ical ly whe n the hot w ater tap i s ope ned, and g oes o ut
?
when the ta p is c lose d. Ig niti on is elec tron ic, t here is no pilo t lig ht. W hen th e hot wate r
tap i s off, no ga s is u sed. You s ave e nerg y and mone y wit h the Rinn ai Water Heat er.
T he te mper atur e of t he ou tgoi ng ho t wate r is c onst antl y mon itor ed by a bui lt in sens or. I f
?
the t emper atur e of t he ou tgoi ng wa ter r ises to mo re th an 6 d egre es ab ove t he sel ecte d
temp eratu re (s hown on th e dig ital remo te co ntro l) th e gas burn er wi ll au tomat ical ly go
out. The ga s bur ner w ill r e-ig nite once the o utgo ing h ot wa ter t empe ratu re fal ls be low t he
sele cted t empe ratu re.
B uilt into the m icro proc esso r of t he Rin nai Wat er He ater is th e abil ity t o LIM IT TH E
?
MAXI MUM TE MPER ATUR E of t he ho t wat er su ppli ed by the R inna i Wat er He ater s.
With out th e con nect ion o f a re mote cont roll er(s ), th e Rin nai Wate r Hea ter i s pre set t o
deli ver wa ter a t 120OF (Re siden tial ) and 140OF (Co mmerc ial) .
R esid enti al Un it: W ith t he re mote contr olle r(s) the w ater temp erat ure i s adj usta ble f rom
?
98 to 140
120OF without the use of a remote controller unit.
C omme rcia l Uni t: Wi th th e rem ote c ontro ller the w ater temp erat ure i s adj usta ble u p to
?
E rror mess ages are d ispl ayed on th e opti onal remo te co ntro ller (s), simp lify ing s ervi ce
?
The Rinnai Water Heater incorporates a device to minimize temperature uctuations (cold
?
T he so und ( nois e) le vel f rom t he Ri nnai W ater Heat ers i s ver y low .
?
O
185
without the use of a remote controller unit.
call s.
water sandw ich ef fect) when t he wat er is o ff, the n on ag ain. T his ef fect c an be e limin ated
by in stall ing t he Ri nnai Wate r Hea ters with a cir cula tion loop with a sma ll sto rage tank .
O
F. The water temperature cannot be set to a temperature other than
F. The water temperature cannot be set to a temperature other than 140OF
The Rinnai Water Heater is a very compact direct vented device. It saves valuable oor
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and w all sp ace.
Rinnai America
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FF Models
HOTHOT
COLD
ON!ON!
100oF
140oF
S
O
L
V
E
N
T
HOTHOT
COLD
ON!ON!
98 F
o
o
110 F
HOTHOT
COLD
ON!ON!
HOT!
HOTHOT
COLDCOLD
ON!ON!
B A S I C O P E R A T I O N
1
Adjusting Temperature
The o utlet wate r tem pera ture of th e Rin nai
Water He ater can o nly b e adj uste d by
the u ser us ing t he re mote cont roll er(s ).
To adju st th e set poin t temp erat ure o f
the R innai Water H eate r, a ll hot wate r
taps must b e clo sed, and a ll ci rcul atin g
pump s turn ed off (whe re ap plic able ). The
temp eratu re di spla yed o n thi s rem ote
cont rolle r wil l als o be d ispl ayed on al l
othe r remo te co ntro ller (s).
NOTE: TEMPERATURE CANNOT BE
ADJUSTED EXCEPT BETWEEN 98°F AND 110
°F WHEN ANY HOT WATER TAP IS OPEN.
To take cont rol o f the Rinna i Water Heat er
2
all h ot wat er ta ps mu st be clos ed. P ress
the " Prior ity b utto n" on the C ontr olle r you
want to set the t empe ratu re wi th, a nd
the g reen " Prio rity " ind icat or li ght w ill
3
Simp ly pre ss th e or butt on
unti l the r equi red t empe ratu re is
disp layed on th e Dig ital Moni tor.
There is a hot water
scald potential if the
thermostat is set to high.
NOTE: CHECK LOCAL CODES FOR
THE MAXIMUM WATER TEMPERATURE
SETTING ALLOWED WHEN USED IN
NURSING HOMES, SCHOOL, DAY CARE
CENTERS, AND ALL OTHER PUBLIC
APPLICATIONS.
4
Rinnai America
glow. This i ndic ates that the R inna i Water
Heat er is r eady to su pply hot w ater at
the s et tem pera ture as so on as a tap is
open ed.
Note : Rinn ai Wate r Hea ter w ill n ot pro vide
hot w ater i nsta ntly at th e hot wate r
xtures. Any cold water existing in the hot
water lines must be purged rst.
CHECK WATER
TEMPERATURE BEFORE
ENTERING SHOWER OR
BATH.
9
To operate t he Ri nnai Water He ater
simp ly tur n any hot w ater tap o n.
This w ill au tomat icall y ligh t the b urner
prov iding hot w ater at th e pre set
temp eratu re. I f the opti onal remo te
cont rolle r(s) have been inst alle d, th e
red “ IN USE ” ind icat or wi ll gl ow on
all r emote cont roll er(s ).
NOTE: If a newly installed unit has not
been powered for at least six hours then
the temperature will return to the default
setting if power is interrupted.
FF Models
A B O U T H O T W A T E R
Hot Water I s D ang erou s, espec ial ly for t he youn g an d t he elder ly or
the inrm. The Rinnai Water Heater allows you to precisely control the
temp era ture of yo ur h ot wate r, ensu ring sa fe hot w ate r t empe rat ures .
Water Tempe ratu res o ver 1 25°F can ca use
seve re bur ns in stan tly o r dea th fr om sc alds .
Hot Water can cause rst degree burns with
expo sure f or as litt le as :
3 se cond s at 1 40 °F
20 sec onds at 13 0 °F
8 mi nute s at 120 ° F
Test th e tem pera ture of the wate r wit h you r
elbo w befo re pl acin g a ch ild i n the bath or
show er.
Do not leave a child or an inrm person in
the b ath un supe rvis ed.
BURN
S c a l d s - F i r s t A i d
1) Remove clothing; Remo ve al l wet clot hing , qui ckly. Wet clo thin g ret ains the h eat.
2) Apply cold water for 30 minutes; Imm edia tely subm erge the b urnt area in co ld
wate r for 3 0 min utes to re duce the h eat i n the skin , pre vent ing d eepe r bur ning.
Neve r use b utte r, o ils o r oin tmen t to c over the b urn. T hey m ay re tain the h eat.
3) Keep the scalded person warm; Pl ace a blan ket a roun d the perso n.
4) Seek Medical Advice; Cal l you r med ical advi ce ho tlin e and desc ribe the s cald,
foll ow the ir di rect ions .
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G E N E R A L C O N T R O L L E R I N F O R M A T I O N
REMOTE CONTROLLERS IDENTIFICATION
MC-91-1US (comes with the unit)
MC-100V-1US (optional)
BC-100V-1US (optional)
The c ontro ller (s) f or th e Rin nai Wate r Hea ter a llow the c usto mer t o con trol the f unct ions of th e
wate r heat er an d to d iagn ose c erta in fa ult c ondi tion s
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R E M O T E C O N T R O L L E R O P E R A T I O N
DIAGNOSTIC USE OF CONTROLLER
1.
main tenan ce co des, pres s ‘On /Off ’ f ollo wed b y the
2.
for 2 secon ds an d sim ulta neou sly p ress ‘On/ Off’ but ton.
3.
Rinnai America
To Display Maintenance Codes: Pr ess ‘ On/O ff’ butt on. To se quen ce th roug h sto red
ther mosta t but ton.
To Display Water Flow through water heater: Pr ess the rmos tat b utto n, ho ld
To display Outlet Water Temperature: Pres s
12
FF Models
Digital Monitor
Indicates the selected water
temperature. Error messages flash
in the event of a failure.
ON/OFF
Used to switch the water heater on
and off.
Priority
Pressing takes control of the water
temperature by this controller only
when all taps are open.
Function
Enables the user to set the clock
and sound volume functions.
Thermostat
Increases or decreases the desired
water temperature.
In Use Indicator
Indicates that a hot water tap is open
and that control of the temperature is
taken at another controller.
Water Temperature Indicator
Indicates the selected hot water
temperature.
Clock
12 Hour AM / PM clock. In the event
of a fault, codes for error messages
will flash here.
Call
Allows user to contact another
controller. Can be used as a
communication channel for errands
or in emergency situations.
In Use Indicator
Indicates that a hot water tap is open and that control
of the temperature is taken at another controller.
Priority
Pressing takes control of the water
temperature by this controller only
when all taps are off.
Call
Allows user to contact another
controller. Can be used as a
communication channel for errands
or in emergency situations.
Clock
12 Hour AM / PM clock. In the event
of a fault, codes for error messages
will flash here.
Thermostat
Increases or decreases the desired
water temperature.
Sound Volume
Used to select the voice prompt
volume.
Water Smart / Bath Fill Indicator
Used to select Water Smart / Bath Fill Function.
ON/OFF
Used to switch the water heater on
and off.
Water Smart / Bath Fill
Used to select Water Smart / Bath
Fill Function.
Power Save
Indicates that the remote is in the
energy saving mode.
Water Volume
Used to select Water Smart / Bath
Fill volumes.
D E L U X E C O N T R O L L E R
ABOUT THE DELUXE CONTROLLER (MC-100V-1US)
NOTE: With power interruption, water heater will automatically default to the ON position to
provide hot water.
A B O U T T H E TH E D E L U X E B AT H R O O M CO N T R O L L E R (B C - 1 0 0 V- 1 U S )
Rinnai America
D E L U X E B A T H R O O M C O N T R O L L E R
13
FF Models
HOTHOT
COLDCOLD
ON!ON!
D E L U X E B A T H R O O M C O N T R O L L E R
Setting the Sound Volume
The v oice p romp t sou nd vo lume for a ll De luxe
Cont rolle r(s) can b e set indi vidu ally. To do
this , pres s the ‘Sou nd Vol.’ but ton. T he de faul t
voic e prom pt so und v olum e is m ediu m, ea ch
subs equen t pre ss of the ‘ Soun d Vol.’ will cycle
thro ugh th e ava ilab le vo lume sett ings in th e
foll owing orde r: Hi gh Voice - Off Voice ( beep )
- Off So und ( no be ep) - Low Voice - Med ium
Voice.
Adjusting Temperature
Simp ly pre ss th e ‘Ho t wat er te mp.’ or
butt ons un til t he re quir ed te mper atur e is
disp layed on th e Dig ital Moni tor.
To Oper ate t he ho t wat er uni t, op en an y hot
wate r tap. This w ill a utom atic ally ligh t the
burner providing hot water. The red ame of the
wate r heat er ‘I n Use Indi cato r ’ will illum inat e
on th e Tempera ture Cont roll er.
Once the ho t wat er is runn ing, if th e set
temp eratu re is eith er to o hot or co ld, p ress the
‘hot water temp . or butt ons u ntil the
desi red te mper atur e is r each ed.
CHECK WATER TEMPERATURE BEFORE USE.
A parent should always check the temperature before a child is placed in contact
with hot water.
NOTE: Avoid getting water in the speaker as this may cause damage.
NOTE: TEMPERATURE CANNOT BE
ADJUSTED EXCEPT BETWEEN 98°F
AND 110°F WHEN ANY HOT WATER TAP
IS OPEN.
Rinnai America
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FF Models
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