HydroTherm HV-75 Guide

HydroTherm UMHV3-1
HV & HW GAS BOILERS
USER'S INFORMATION MANUAL
DESIGNED AND TESTED ACCORDING TO A.S.M.E. BOILER AND PRESSURE
VESSEL CODE, SECTION IV FOR A MAXIMUM ALLOWABLE WORKING
PRESSURE OF 50 PSI, 345 kPa WATER.
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.
INSTALLER, THIS MANUAL TO BE AFFIXED ADJACENT TO THE BOILER.
CONSUMER, RETAIN THIS MANUAL FOR FUTURE REFERENCE PURPOSES.

Page 2 HV & HW USER'S INFORMATION MANUAL
Ne pas entreposer ni utiliser d'essence ou ni d'autres vapeurs ou liquides
inflammables aproximite de cet appareil ou de tout autre appareil.
QUE FAIRE SI VOUS SENTEZ UNE ODEUR DE GAZ:
•Ne pas tenter d'allumer d'appareil.
•Ne touchez aaucun interrupteur; ne pas vous servir des telephones se trouvant
dans le b_timent.
•Appelez immediatement votre fournisseur de gas depuis un voisin. Suivez les
intructions du fournisseur.
•Si vous ne purvez rejoindre le fournisseur, appelez le service des incendies.
L'installation et rentretien doivent _tre assures par un installateur ou un service
d'entretien qualifie ou par le fournisseur de gaz.
The owner should maintain a record of all service work
performed with the date and a description of the work
done. Include the name of the service organization for
future reference.
All aspects of the boiler installation must conform to the
requirements of the authority having jurisdiction, or, in
the absence of such requirements, to the latest edition
of the National Fuel Gas Code, ANSI Z223.1/NFPA 54.
Where required by the authority having jurisdiction, the
installation must conform to the Standard for Controls
and Safety Devices for Automatically Fired Boilers,
ANSI/ASME CSD-1.
Direct all questions to your HydroTherm distributor or
contact the HydroTherm Customer Service Department
at: 260 North Elm Street, Westfield, MA 01085. Always
include the model and serial numbers from the rating
plate of the boiler/water heater in question.
CAUTION: Servicing, inspection and adjustment must
be done by a trained technician in accordance with all
applicable local and national codes. Improper servicing
or adjustment can damage the boiler!
The boiler should be cleaned and inspected once a year,
before each heating season. Make sure that the burner,
ignition components and vent system are free from dust,
soot, dirt, corrosion or other deposits that would impair
the boiler performance and safe operation.
Should overheating occur or the gas supply fail to shut
off, do not turn off or disconnect the electrical supply to
the pump. Instead, shut off the gas supply at a location
external to the appliance.
En cas de surchauffe ou si ralimentation de gaz ne peut
_tre couple, ne pas couper ni d_brancher I'alimentation
_lectrique de la ponpe. Fermer plut6t le robinet d'admis-
sion de gaz & I'ext_rieur de rappareil.
Do not use this appliance if any part has been under
water. Immediately call a qualified service technician
to inspect the appliance and to replace any part of the
control system and any gas control that has been
under water.
In Canada, the installationmust be in accordance with
the requirements of CSA B149.1 or .2, Installation Code
for Gas Burning Appliances and Equipment.
N'utilisez pas cet appareil s'il a _t_ plong_ dans I'eau,
m_me partiellement. Faites inspecter I'appareil par un
tecnicien qualifi_ et remplacez toute pattie du systeme
de contr61e et toute commande qui ont _t_ plong_s dans
reau.

HV&HWUSER'SINFORMATIONMANUAL Page3
FOR YOUR SAFETY READ BEFORE LIGHTING
A,
B,
The HW (constant pilot) appliance is equipped with
a continuous pilot it must be lit by hand. Follow the
lighting instructions exactly.
BEFORE LIGHTING smell all around the appliance
area for gas. Be sure to smell next to the floor
because some gas is heavier than air and will
settle on the floor.
WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Do not touch any electric 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.
• Ifyou cannot reach your gas supplier, call the
fire department.
C, Use only your hand to push in or turn the gas
control knob. Never use tools. If the knob will not
push in or turn by hand, don't try to repair it, call a
qualified service technician. Force or attempted
repair may result in a fire or explosion.
D, Do not use this appliance if any part has been
under water. Immediately call a qualified service
technician to inspect the appliance and to replace
any part of the control system and any gas control
which has been under water.
LIGHTING INSTRUCTIONS
1. STOP! Read the safety information above.
2. Set the thermostat to lowest setting.
3. Remove control access panel.
4. Push in gas control knob slightly and turn clockwise
to "OFE"
PRESSURE REGULATOR
ADJUSTMENT
(UNDER OUTLET PRESS.
TAP
GAS _ GAS
INLET _OUTLET
RED RESET GAS CONTROL
BUTTON KNOB
5. Wait five (5) minutes to clear out any gas.
Then smell for gas, including near the floor.
If you then smell gas, STOP! Follow "B" in the
safety information above. If you don't smell gas,
go to the next step.
6. Open the pilot sight door above the main burners.
7. Find pilot - follow metal tube from the gas control.
The pilot is between the two burner tubes behind
the pilot sight door.
,
,
Turn knob on gas control
counterclockwise ,_--,
to "PILOT."
Push in control knob all the
and hold in. Immediately
light the pilot with a match.
Continue to hold the control
knob in for about one (1)
minute after the pilot is lit.
Release knob and it will pop back up. Pilot should
remain lit. If it goes out, repeat steps 4 through 9.
• If knob does not pop up when released. Stop
and immediately call your service technician
or gas supplier.
• If the pilot will not stay lit after several tries.
Turn the gas control knob to "OFF" and call
your service technician or gas supplier.
10. Close pilot sight door.
11. Turn gas control knob counterclockwise
to "ON."
12. Replace control access panel.
13. Set thermostat to desired setting.
TO TURN OFF GAS TO APPLIANCE
1. Set the thermostat to lowest setting.
2. Remove control access panel. 3. Push in gas control knob slightly and turn clockwise _ to "OFF." Do not force.
4. Replace control access panel.

Page4 HV&HWUSER'SINFORMATIONMANUAL
POUR VOTRE SI_CURITI_ LISEZ AVANT D'ALLUMER
A. Cet appareil est muni d'une veilleuse qui dolt _tre
allum_e manuellement. Respectez les instructions
cidessois & la lettre.
B, Avant d'allumer la veilleuse, reniflez tout autour de
I'appareil pour d_celer une odeur de gaz. Reniflez
pres du plancher, car certains gaz sont plus Iourds
que I'air et peuvent s'accumuler au niveau du sol.
QUE PAIRE SI VOUS SENTEZ UNE ODEUR DE GAZ:
• Ne pas tenter d'allumer d'appareil.
• Ne touchez & aucun interrupteur; nepas vous
servir des t_l_phones se trouvant dans le b&timent.
• Appelez imm_Ediatenemt votre fournisseur de
gas depuis un voisin. Suivez les instructions du
fournisseur.
• Si vous ne pouvez rejoindre le fournisseur,
appelez le service des incendies.
C, Ne poussez ou tournez la manette d'admission du
gaz qu'& la main; ne jamzis utiliser d'outil. Si la
manette reste coinc_e, ne tentez pas de la
r@arer; appelez un technicien qualifi& Le fait de
forcer la manette ou de la r_parer peut d_lencher
une explosion ou un incendie.
D, N'utilisez pas cet appareil s'il _t_ plong_ dans
I'eau, m_me partiellement. Faites inspecter
I'appareil par un technicien qualifi_ et remplacez
toute pattie du systeme de contr61e et toute
commende qui ont _t_ plong_s dans I'eau.
INSTRUCTIONS D'ALLUMAGE
1. ARRI_TEZ! Lisez les instructions de s_curit_ sur la
portion sup_rieure de cette _tiquette.
2. R_glez le thermostat & la temperature la plus basse.
3. Coupez I'alimentation _lectrique de I'appareil.
4. Enlever le panneau de porte du r_chauffer.
5. Poussez I_gerement la manette de commande de
gaz et tournez-la vers la droite jusqu' _ &
la position "OFF".
ajustement du
r_gulateur de pression de pression+
(sous le capuchon) TAP
entree
de gaz
bouton rouge de manege de
reddmarrage commande de gaz
6. Attendre cinq (5) minutes pour laisser _chapper
tout le gaz. Reniflez tout autour de I'appareil, y
compris pres du plancher, pour d_celer une 'odeur
de gaz. Si vous sentez une odeur de gas,
ARRETEZ! Pas- sez & I'_tape "B" des instructions
de s_curit_ sur la portion sep_rieure (& gauche)
de cette etiquette. S'il n'y a pas d'odeur de gaz,
passer & I'_tape suivante.
7. Ouvrez la trappe d' observation de la chambre
de combustion situ_e au-dessus des brQleurs
principaux.
8. Identifiez la veilleuse,
sui-vez le tube m_tallique
de la manette de commade
de gaz. La veilleuse se
trouve entre les deux
tubes de brQleurs derriere
la trappe d'observation.
9. Tournez la manette de
mande de gaz dans le
veilleuse_\
sens contraire des aiguilles d' une montre jusqu' &
la position (Veilleuse).
10. Enfoncez la manette de commande et maintenez-la.
Allumez immediatement la veilleuse avec des
allumettes. Continuez & appuyer sur la manette
pendant environ 1 minute apres I' allumage de la
veilleuse. Rel&cher la veilleuse et elle reprendra
sa position initiale. La veilleuse dolt rester allum_e.
Si elle s' _teint, repettez les _tapes de 4 & 9.
• Si la manette ne se souleve pas d' elle- m_me
Iorsqu' on la rel&che, arr_tez et appelez imm_di-
atement le technicien ou le fournisseur de gaz.
• Si la veilleuse ne reste pas allum_e apres
plusieurs tenatives, tournez la manette de
commande de gaz sur _k la position "OFF" et
appelez le technicien ou le fournisseur.
11. Refermez la trappe de la chambre d' observation.
12. D_placez la manette de commande de gaz vers la
gauche jusqu' _ _ & la position "ON"
13. Rebranchez I' alimentation _lectrique de I'appareil.
14. R_glez le thermostat & la temperature d_sir_e.
COMMENT COUPER L'ADMISSION DE GAZ DE L'APPAREIL
1. Mette le thermostat & la temperature la plus basse.
2. Si un entretien dolt _tre effectu_, coupez
I'alimentation _lectrique de I'appareil.
3. Lever le panneau de parte du r_chauffer.
4. Tourner le bouton de commande de gaz vers
droite, _-_k en position d'arr_t "OFF". Ne pas
forcer!!
5. Replacer le panneau de parte du r_chauffer.

HV&HWUSER'SINFORMATIONMANUAL
FOR YOUR SAFETY READ BEFORE OPERATING
Page 5
A,
B,
The HV and HW (spark pilot) appliance is equipped
with an ignition device which automatically lights
the pilot. Do not try to light the pilot by hand.
BEFORE OPERATING smell all around the
appliance area for gas. Be sure to smell next to
the floor because some gas is heavier than air
and will settle on the floor.
WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance
• Do not touch any electric 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.
C, Use only your hand to push in or turn the gas
control knob. Never use tools. If the knob will not
push in or turn by hand, don't try to repair it, call a
qualified service technician. Force or attempted
repair may result in a fire or explosion.
D, Do not use this appliance if any part has been
under water. Immediately call a qualified service
technician to inspect the appliance and to replace
any part of the control system and any gas control
which has been under water.
OPERATING INSTRUCTIONS
1. STOP! Read the safety information above.
2. Set the thermostat to lowest setting.
3. Turn off all electric power to the appliance.
4. This appliance is equipped with an ignition device
which automatically lights the pilot. Do not try to
light the pilot by hand.
5. Remove control access panel.
6. Push in gas control knob slightly and turn clockwise
to "OFR"
7. Wait five (5) minutes to clear out any gas. Then
smell for gas, including near the floor. If you then
smell gas, STOP! Follow "B" in the safety informa-
tion above. If you don't smell gas, go to next step.
8. Turn gas control knob counterclockwise _ to
"ON."
9. Replace control access panel.
10. Turn on all electric power to the appliance
11. Set thermostat to desired setting.
12. If the appliance will not operate. Follow the
instruction "To Turn Off Gas To Appliance"
and call your service technician or gas supplier.
PRESSURE REGULATOR
ADJUSTMENT OUTLET PRESS,
(UNDER CAP SCREW) TAP
GAS ) GAS
INLET OUTLET
GAS CONTROL
KNOB
TO TURN OFF GAS TO APPLIANCE
1. Set the thermostat to lowest setting.
2. Turn off all electric power to the appliance if
service is to be performed.
3. Remove control access panel.
4. Push in gas control knob slightly and turn
clockwise _ to"OFE" Do not force.
5. Replace control access panel

Page6 HV&HWUSER'SINFORMATIONMANUAL
POUR VOTRE SI_CURITI_ LISEZ AVANT DE METTRE EN MARCHE
A. Cet appareil est muni d'un dispositif d'allumage
qui allume automatiquement la veilleuse. Ne
tentez pas d'allumer la veilleuse manuellement.
B, AVANT DE FAIRE FONCTIONNER, reniflez tout
autour de I'appareil pour d_celer une odeur de
gaz. Reniflez pres du plancher, car certains gaz
sont plus Iourds que I'air et peuvent s'accumuler
au niveau du sol.
QUE PAIRE SI VOUS SENTEZ UNE ODEUR DE GAZ:
• Ne pas tenter d'allumer d'appareil.
• Ne touchez & aucun interrupteur; nepas vous
servir des t_l_phones se trouvant dans le
b&timent.
• Appelez imm_diatenemt votre fournisseur de
gas depuis un voisin. Suivez les instructions du
fournisseur.
C,
D,
• Si vous ne pouvez rejoindre le fournisseur,
appelez le service des incendies.
Ne poussez ou tournez la manette d'admission du
gaz qu'& la main; ne jamzis utiliser d'outil. Si la
manette reste coinc_e, ne tentez pas de la r_parer;
appelez un technicien qualifi& Le fait de forcer la
manette ou de la r_parer peut d_lencher une
explosion ou un incendie.
N'utilisez pas cet appareil s'il _t_ plong_ dans
I'eau, m_me partiellement. Faites inspecter
I'appareil par un technicien qualifi_ et remplacez
toute partie du systeme de contr61e et toute
commende qui ont _t_ plong_s dans I'eau.
INSTRUCTIONS DE MISE EN MARCHE
1. ARRI_TEZ! Lisez les instructions de s_curit_ sur
la portion sup_rieure de cette _tiquette.
2. Mette le thermostat & la temperature la plus basse.
3. Coupez I'alimentation _lectrique de I'appareil.
4. Cet appareil est _quip_ d'un dispositif d'allumage
automatique la brQleur.
ajustement du
r_gulateur de pression
(sous _ecapuchon) de pression,
TAP
entree
de g_
,
6.
de
commande de gaz
Enlever le panneau de parte du r_chauffer.
Tourner le bouton de commande de gaz vers la
droite _, en position d'arr_t "OFF". Ne pas
forcer!
,
,
,
10.
11.
12.
Attendre cinq (5) minutes pour laisser _chapper
tout le gaz. Reniflez tout autour de I'appareil, y
compris pres du plancher, pour d_celer une
odeur de gaz. Si vous sentez une odeur de gaz,
ARRI_TEZ! Passez a I'_tape B des instructions
de s_curit_ sur la portion sup_rieure de cette
_tiquette. S'il n'y a pas d'odeur de gaz, passez
I'_tape suivante.
Tourner le bouton de commande de gaz vers la
gauche ff--\, en position de marche "ON".
Replacer le panneau de parte du r_chauffer.
R_tablir toute I'alimentation _lectrique de la
chaudiere.
Mette le thermostat thermostat sur le r_gleage
d_sir&
Si I'appareil ne fonctionn_ pas, voir les
instructions de "cooPURE DE I'ARRIVE DE
GAZ A LA CHAUDIERE" et appeler un technicien
reparateur ou le fournisseur de gaz.
COMMENT COUPER L'ADMISSION DE GAZ DE L'APPAREIL
1. Mette le thermostat & la temperature la plus basse.
2. Si un entretien dolt _tre effectu_, coupez
I'alimentation _lectrique de I'appareil.
3. Lever le panneau de parte du r_chauffer.
4. Tourner le bouton de commande de gaz vers
droite _, en position d'arr_t "OFF". Ne pas
forcer!
5. Replacer le panneau de parte du r_chauffer.

HV&HWUSER'SINFORMATIONMANUAL Page7
FLAME ROLL-OUT SAFETY SHUTOFF SYSTEM
The HV and HW gas boilers are fitted with a flame roll-
out switch that detects the presence of hot flue gases in
the control compartment. If something prevents the
combustion products from properly passing through the
boiler, the roll-out switch will shut the boiler off. If the
flame roll-out safety system is activated, contact a
qualified service agency to correct the problem and reset
the flame roll-out safety switch. Do not attempt to start
the boiler until the problem has been corrected and the
switch has been reset.
Never attempt to bypass the flame roll-out safety
shutoff switch for the purpose of operating the
boiler!
BLOCKED VENT SHUTOFF SYSTEM
The HW gas boiler is fitted with a blocked vent shutoff
system which detects the leakage of combustion
gases from the boiler. This system acts to shut the
boiler off when the flue gases are not able to pass
through the venting system. If the blocked vent shutoff
system is activated, contact a qualified service agency
to correct the problem and replace the single use
blocked vent safety switch. Do not attempt to start the
boiler until the problem has been corrected and the
switch has been replaced!
Never attempt to bypass the blocked vent safety
shutoff switch for the purpose of operating the
boiler!
BOILER SERVICE LOG

Any appliance that burns natural gas, propane gas, fuel oil, wood or coal is capable of producing carbon
monoxide (CO).
Carbon monoxide (CO) is a gas which is odorless, colorless and tasteless but is very toxic.
If your Hydrotherm boiler is not working properly, or is not vented properly, dangerous levels of CO may accumulate.
CO is lighter than air and thus may travel throughout the building. Brief exposure to high concentrations of CO, or
prolonged exposure to lesser amounts of CO, may result in carbon monoxide poisoning.
Exposure can be fatal and exposure to high concentrations may result in the sudden onset of symptoms including
unconsciousness.
Symptoms of CO poisoning include:
dizziness vision problems shortness of breath
headaches loss of muscle control unclear thinking
nausea weakness unconsciousness
The symptoms of CO poisoning are often confused with those of influenza, and the highest incidence of poisoning
occurs at the onset of cold weather or during flu season. A victim may not experience any symptoms, only one
symptom or a few symptoms. Suspect the presence of carbon monoxide if symptoms tend to disappear when you
leave your home.
The following signs may indicate the presence of carbon monoxide:
•Hot gases from appliance, venting system, pipes, or chimney escaping into the living space.
• Flames coming out around the appliance.
• Yellow colored flames in the appliance.
• Stale or smelly air.
• The presence of soot or carbon in or around the appliance.
• Very high unexplained humidity inside the building.
If any of the symptoms CO poisoning occur, or if any of the signs of carbon monoxide are present, vacate the
premises immediately and contact a qualfied heating service company, the gas company or the fire
department.
To reduce the risk of CO poisoning, have your heating system "tuned up" by a licensed heating contractor or the
gas company - preferably before each heating season. Also have the service company check your chimney or vent
pipes for blockage. Your home should also be adequately ventilated, particularly ifyou have insulated your home.
Only qualified, licensed service contractors should perform work on your Hydrotherm Boiler.
Install, operate and maintain unit in accordance with manufacturer's instructions to avoid exposure to fuel
substances or substances from incomplete combustion which can cause death or serious illness. The State of
California has determined that these substances may cause cancer, birth defects, or other reproductive harm.
Also, install and service this product to avoid exposure to airborne particles of glasswool fibers and/or ceramic
fibers known to the State of California to cause cancer through inhalation.
HydroTherm
IN UNITED STATES: 260 NORTH ELM ST., WESTFIELD, MA 01085 • [phone] FAX [phone]
IN CANADA: 7555 TRANMERE DRIVE, MISSISSAUGA, ONTARIO L5S 1L4 • [phone] FAX [phone]
www.hydrotherm.com