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figure 9 - Gas piping

The boiler is equipped with a ½” NPT connection on the gas valve

for supply piping and ½” NPT ball valve for manual shut off. The

following rules apply for boiler piping:

Use only those piping materials and joining methods listed

as acceptable by the authority having jurisdiction, or in the

absence of such requirements, by the National Fuel Gas Code,

ANSI Z223.1- latest revision. In Canada, follow the CAN/CGA

B149.1 and .2 Installation Codes for Gas Burning Appliances

and Equipment.

iX - Gas supply pipinG

X - electrical wirinG

iMPORtaNt:

Wiring diagrams for the Gas-Fired Direct Vent Modulating Hot Water Boiler can be

found in Section XIV of this manual.

WARNING

For your safety, turn off electrical power supply at service

panel before making any electrical connections to avoid

possible electric shock hazard. Failure to do so can cause

severe personal injury or death.

NOTICE

IMPORTANT: Wiring must be N.E.C. Class 1. If original

boiler wiring must be replaced, use only type 105°C wire

or equivalent. Boiler must be electrically grounded as re-

quired by National Electrical Code ANSI/NFPA 70 - latest

edition. and operation.

codes

Installations must comply with National Electrical Code, any other

national, state, provincial, or local codes or regulations, and, in

Canada, with CSA C22.1 Canadian Electrical Code (Part 1) and any

local codes. (L1, L2)

line voltage connections

Connect 120 VAC power wiring to line voltage terminal strip

on boiler control panel.
Provide and install a fused disconnect or service switch (15 amp

recommended) as required by code.
Boiler circulator is shipped loose. Wire boiler circulator as

shown in wire diagram label on boiler side panel. (CH L1, CH

L2) CH = Control Heat
When connecting a DHW circulator, connect wiring to line

voltage terminal strip on boiler control panel. (DHW L1, DHW

L2) DHW = Domestic Hot Water

Use pipe joint compound suitable for liquefied petroleum gas

on male threads only.
Use ground joint unions.

Install a sediment trap upstream of gas controls.

Use two pipe wrenches when making the connection to the gas

valve to keep it from turning.
Install a manual shutoff valve in the vertical pipe about 5’ above

floor outside the boiler jacket in addition to the shutoff valve

supplied with the boiler.
Tighten all joints securely.

Propane gas connections should only be made by a licensed

propane installer.
Two stage regulation should be used by the propane installer.

Propane gas piping should be checked out by the propane

10.

installer.

checking the Gas piping

After all connections have been made, check immediately for leaks.

Open the manual shutoff valve. Test for leaks by applying soap suds

(or a liquid detergent) to each joint. Bubbles forming indicate leak.

Correct even the smallest leak at once.

WARNING

Never use a match or open flame to test for leaks!!

Содержание UTICA BOILERS UB95M-200

Страница 1: ...mpany Utica BOILERS P O Box 4729 Utica NY 13504 4729 www uticaboilers com Member The Hydronics Institute UB95M 200 Gas Fired Direct Vent Modulating Hot Water Boiler With Outdoor Reset And Built In Low Water Cutoff LWCO INSTALLATION OPERATION MAINTENANCE MANUAL ...

Страница 2: ...rbs large amounts of heat from the cast aluminum heat exchanger cooling the flue gases and causing condensation Sealed combustion premix gas burner and low flame temperature means drastically reduced CO and NOx emissions which contribute to a cleaner and healthier environment This appliance unlike normal residential atmospheric and induced draft units takes its combustion air directly from the out...

Страница 3: ...o inside a building Be sure there is adequate outdoor air supply to boiler for com 6 plete combustion Follow a regular service and maintenance schedule for efficient 7 and safe operation Keep boiler area clean of debris and free of combustible and 8 flammable materials Proper through the wall or through the roof combustion 9 venting shall be in accordance with the materials and methods described i...

Страница 4: ...ping and pickup allowance establishes a reserve for heating the volume of water in the system and offsetting heat losses from the piping The Net I B R Ratings shown are based on a piping and pickup factor of 1 15 in accordance with the I B R Standard as published by the Hydronics Institute The Net I B R Rating of the boiler selected should be greater than or equal to the calculated peak heating lo...

Страница 5: ...the provisions of 248 CMR 5 08 2 a 1 through 4 Product approved vent air intake 5 A product approved vent terminal must be used and if applicable a product approved air intake must be used Installation shall be in strict compliance with the manufacturer s instructions Installation instructions 6 A copy of all installation instruc tions for all Product Approved side wall horizontally vented gas fue...

Страница 6: ... control replacement etc The boiler must be located where ambient room temperatures 8 minimum possible temperatures where boiler is installed as suming boiler is not in operation and therefore contributes no heat to the space are always at or above 32 F to prevent freez ing of liquid condensate Combustion Air and Vent Pipe Requirements This boiler requires a dedicated direct vent system In a direc...

Страница 7: ...0 FT 305 CM MOUNT VENT TERMINATION AT LEAST 36 92 CM FROM INSIDE CORNERS VENT TERMINATION MUST BE INSTALLED WITH A CLEARANCE OF AT LEAST 12 INCHES 31 CM FROM ANY AIR OPENING INTO A BUILDING 12 MIN Through the wall vents for Category II and IV appliances and non categorized condensing appliances shall not terminate over public walk ways or over an area where condensate or vapor could create a nuisa...

Страница 8: ...ombustion air must not be taken from inside the structure because that air is frequently contaminated by halogens which include fluorides chlorides phosphates bromides and iodides These elements are found in aerosols detergents bleaches cleaning solvents salts air fresheners paints adhesives and other household products NOTICE Condensate trap is integral to the boiler Wood frame or concrete blocks...

Страница 9: ...d cause an unsafe condition When it is practical close all building doors and windows and 3 all doors between the space in which the appliances remaining connected to the common venting system are located and other spaces of the building Turn on clothes dryer and any appliance not connected to the common venting system Turn on any exhaust fans such as range hoods and bathroom exhaust so they will ...

Страница 10: ...on CAUTION Copper supply and return piping must NOT be installed directly into aluminum boiler section castings due to galvanic corrosion between dissimilar metals Iron or steel bushings or pipe nipples should be used between cop per system piping and boiler to make final connection to boiler Also the use of dielectric unions is acceptable The packaged boiler is furnished with iron piping where ne...

Страница 11: ...pplied 1 2 PVC tee then transition to pipe and fittings for PVC condensate drain line Condensate drain line to be pitched down to floor drain at a minimum of per foot The diameter schedule 40 PVC condensate drain piping and pipe fittings must conform to ANSI standards and ASTM D1785 Sched ule 40 PVC cement and primer must conform to ASTM D2564 In Canada use CSA or ULC certified schedule 40 PVC dra...

Страница 12: ...must be 3 listed to ULC S636 WARNING Do not use cellular core PVC for venting flue gas Combustion air and vent pipe connections on boiler are 2 but 4 must increase to 3 Due to potential for flue gas temperatures above 155 F the first 30 of supplied vent pipe is CPVC while the remaining vent pipe can be PVC Any replacement of the first 30 of vent pipe must be made with CPVC NOTICE NOTE The exhaust ...

Страница 13: ...er tight Working from the boiler to the outside cut pipe to required 2 length s Deburr inside and outside of pipe and remove all shavings 3 from pipe Chamfer outside edge of pipe for better distribution of primer 4 and cement Clean and dry all surfaces to be joined 5 Check dry fit of pipe and mark insertion depth on pipe 6 FIELD INSTALL 2 BY 3 TRANSITION IN THE VERTICAL POSITION ONLY 2 REQ D NOT F...

Страница 14: ...f run and for the total BTU per hour input of all gas utilization equip ment connected to it See Table 4 for proper size Be sure your gas line complies with local codes and gas company requirements The boiler and its individual shutoff valve must be disconnected from the gas supply piping system during any pressure testing of that system at test pressures in excess of psig 3 5kPa The boiler must b...

Страница 15: ... Canada with CSA C22 1 Canadian Electrical Code Part 1 and any local codes L1 L2 Line Voltage Connections Connect 120 VAC power wiring to line voltage terminal strip 1 on boiler control panel Provide and install a fused disconnect or service switch 15 amp 2 recommended as required by code Boiler circulator is shipped loose Wire boiler circulator as 3 shown in wire diagram label on boiler side pane...

Страница 16: ...e Voltage Monitor Low Voltage Connections Connect low voltage wiring to low voltage terminal strip as 1 shown in the boiler wiring diagram Route all low voltage wires through opening on the right 2 jacket panel Use shielded cable Thermostat Connect room thermostat or end switch isolated contact 1 only between terminals T1 and T2 Install thermostat on inside wall away from influences of 2 drafts ho...

Страница 17: ...articular time NTC Sensors The NTC sensors used with this appliance for measuring sup ply water return water and outside air temperature are specially configured to operate with the modulating boiler control Modulating Blower The modulating blower provides a means of introducing the gas air mixture through the burner and into the combustion chamber where combustion can begin and then out the exhau...

Страница 18: ...ng conditions which could damage the boiler The aquastat is mounted in the NPT control well and X bushing on the top of the front boiler section at the hot water outlet The aquastat is tied in with the boiler control and is factory set at 200 F water temperature The high limit setpoint is field adjustable and may be set anywhere between 100 F and 200 F with the maxi mum high limit setpoint not exc...

Страница 19: ... valve discharge opening to an open drain tub or sink or other suitable drainage point not subject to freezing in accordance with ASME specifications Failure to provide the pressure relief valve with piping as herein described may cause water damage and or serious bodily injury The boiler manufacturer is not responsible for any water damage or personal injury Check local codes for maximum discharg...

Страница 20: ...r manufacturer s stated acceptable range pH 7 0 to 8 0 are indications that the system should be cleaned or treated Measure total capacity of the system including the piping tanks 1 boiler collector plates etc The most accurate method of mea suring fluid capacity is to fill the system and then completely drain it volumetrically measuring the fluid drained Thoroughly flush the system with clean wat...

Страница 21: ...eze manufacturer for potential hazards and first aid procedures for exposure or ingestion Antifreeze Testing Services Each of the recommended antifreeze manufacturers have developed a sampling program available to the homeowner and contractor Contact the antifreeze manufacturer regarding their sampling plan procedure Consult the antifreeze manufacturer for details on sample requirements and recomm...

Страница 22: ... vent D Fill the tank to the proper level and close the tank vent Remove the handle from the expansion tank service valve so the homeowner doesn t accidentally close it Open all service valves Any air remaining trapped in the E return lines between the service valves and the boiler will be pushed towards the expansion tank when the boiler is placed in operation Inspect piping system Repair any lea...

Страница 23: ...mation of aluminum oxide This oxide formation is normal is generally uniform throughout the boiler sections and represents a negligible mass of aluminum that is con sumed by oxidation during the life of the boiler If left unchecked this buildup may eventually cause blockage of the flue gas passages in the boiler sections reducing efficiency and ultimately shutting down the boiler due to lack of co...

Страница 24: ...Manual and Operating Instructions P N 240006104 If heating system is to remain out of service during freezing 2 weather and does not contain antifreeze drain system com pletely If boiler will be exposed to freezing temperatures drain condensate lines Annual examination and cleaning of boiler components WARNING The following service procedures must be performed by a qualified service agency using t...

Страница 25: ...gas line to gas valve pressure switch hose to gas valve and air inlet assembly igniter wires and gas valve wires Visually inspect the condensate trap Any foreign material vis 4 ible in the condensate lines needs to be cleaned out as described below Inspect for sediment or blockage Flush out with water or vacuum Follow the instructions in Section VII Filling The Con densate Trap With Water Inspect ...

Страница 26: ...26 ...

Страница 27: ...IS REPLACED IT MUST BE REPLACED WITH LIKE WIRE SIZE AND TYPE OF INSULATION OR EQUIVALENT SI AUCUN DES FILS ORIGINAUX FOURNIS AVEC LA CHAUDÈRE EST REMPLACÉ IL DOIT ÊTRE REMPLACÉ OAR UN AUTRE FIL DE MÊME GROSSEUR ET DU MÊME TYPE D ISOLATION OU L ÉQUIVALENT DISPLAY DHW C1 DHW C2 L N PE DHW PUMP 117 VAC FIELD INSTALLED CH PUMP 117 VAC FIELD INSTALLED CH C2 PE N CH C1 L COMBUSTION FAN 117 VAC N PWM FSP...

Страница 28: ...1 DHW T1 CH T2 CH T1 OUTDOOR AIR SENSOR BOILER CONTROL PANEL DHW CIRC L1 120 VAC L2 CH CIRC Note The CH DHW Circulator connections on the boiler will only support a pump with a 1 amp rating or less Boiler Control Wiring Diagram Single Zone System With Domestic Hot Water Priority 28 ...

Страница 29: ...er CH C1 L1 T STAT L2 CH C2 DHW C2 DHW C1 DHW T2 A2 A1 DHW T1 CH T2 CH T1 OUTDOOR AIR SENSOR aquastat or thermostat Boiler Control Panel DHW CIRC L1 HOT L2 N 120V AC NO L2 VAC 120 4 4 NC AR822 II TORQUE TERMINAL 6 TO 7 INCH LBS ELECTRONIC FUSE CIRCUIT ON AR822 TT R T TT NO 24V W C T 5 SCREWS NC 6 6 CH CIRC XVI piping and wiring appendix Piping Diagram 1 Single Zone System With Domestic Hot Water P...

Страница 30: ...G ZONE CIRCULATOR SEE FIGURE 5 ZONE 4 CIRCULATOR SHUT OFF VALVE PRESSURE REDUCER VALVE CHECK VALVE EXPANSION TANK AIR SEPARATOR ZONE VALVE HOSE BIB FLOW CONTROL VALVE NOTE NOT RECOMMENDED FOR ANTIFREEZE APPLICATIONS XVI piping and wiring appendix Piping Diagram 2 Multizone Piping With Zone Valves And Domestic Hot Water Priority With Zone Valve 30 ...

Страница 31: ...MPER ZONE VALVE PUMP PRIORITY ZR ZC DPM 2 OPTION SWITCH ZC ON STATUS PRIORITY ON PRIMARY PUMP PRIORITY PUMP X X CONTACT ZR ON T T T T T T T T 1 2 3 4 PRI ZONE 1 2 3 4 ZONE 2 1 2 3 4 ZONE 3 1 2 3 4 ZONE 4 SWITCH LEGEND OFF ON N L N L N L ZR ZC 120 VAC PRIORITY PUMP PRIMARY PUMP FROM BOILER X X TRANSFORMER 24VAC 40 VA L LINE IN N Black White 24VAC N L Yellow Yellow AZ 4CP Boiler Control Panel DHW C1...

Страница 32: ...DHW CIRCULATOR CH CIRCULATOR CIRCULATOR FLOW CONTROL VALVE SHUT OFF VALVE PRESSURE REDUCER VALVE CHECK VALVE BALL VALVE AIR SEPARATOR ZONE VALVE HOSE BIB EXPANSION TANK NOTE NOT RECOMMENDED FOR ANTIFREEZE APPLICATIONS Piping Diagram 3 Multizone System With Zone Valves And Domestic Hot Water Priority With Circulator 32 ...

Страница 33: ... ONLY 2 1 3 4 JUMPER ZONE VALVE PUMP PRIORITY ON ZR ZC DPM 2 OPTION SWITCH ZC ON STATUS PRIORITY ON PRIMARY PUMP PRIORITY PUMP X X CONTACT ZR ON T T T T T T T T 1 2 3 4 PRI ZONE 1 2 3 4 ZONE 2 1 2 3 4 ZONE 3 1 2 3 4 ZONE 4 SWITCH LEGEND OFF ON N L N L N L ZR ZC 120 VAC PRIORITY PUMP PRIMARY PUMP FROM BOILER X X TRANSFORMER 24VAC 40 VA L LINE IN N Black White 24VAC N L Yellow Yellow AZ 4CP Boiler C...

Страница 34: ...CULATOR SHUT OFF VALVE PRESSURE REDUCER VALVE CHECK VALVE BALL VALVE AIR SEPARATOR ZONE VALVE HOSE BIB FLOW CONTROL VALVE EXPANSION TANK XVI piping and wiring appendix NOTE NOT RECOMMENDED FOR ANTIFREEZE APPLICATIONS Piping Diagram 4 Multizone System With Circulators And Domestic Hot Water Priority 34 ...

Страница 35: ...T T 3 R ZONE 4 W T 4 R T DHW CIRC L2 CH C2 DHW C2 DHW C1 DHW T2 A2 A1 DHW T1 CH T2 CH T1 OUTDOOR AIR SENSOR aquastat or thermostat Boiler Control Panel 115 V COIL ISOLATION RELAY NORMALY OPEN NOTE IN PLACE OF 115 VOLT ISOLATION RELAY OPTIONAL CONTROL ARGO AR822II TERMINAL 5 6 N O TO DHW T1 DHW T2 L1 L2 TO ARM L N ON PRIORITY ZONE ELECTRONIC FUSE VAC CIRCUIT ON 120 L2 NO 4 NC 4 AR822 TT SCREWS TORQ...

Страница 36: ...D FLOW IN SECONDARY ZONE 4 DHW PUMP CIRCULATOR PUMP SHUT OFF VALVE PRESSURE REDUCER VALVE CHECK VALVE BALL VALVE AIR SEPARATOR ZONE VALVE HOSE BIB FLOW CONTROL VALVE EXPANSION TANK WATER INLET SEE NOTE NOTE RECOMMENDED FOR ANTIFREEZE APPLICATIONS Piping Diagram 5 Primary Secondary Piping With Circulators And Domestic Hot Water Piping Diagram 5 36 ...

Страница 37: ...IRC 3 ZONE 4 ZONE 4 ZONE 3 ZONE 2 N 2 L N 3 L ZONE 3 ZONE 2 120 VAC 4 N L N PRIORITY ON INDIRECT HOT WATER HEATER AQUASTAT OR THERMOSTAT W T STAT DATA PORT X X ZR ZC W T PRIORITY T 1 ZONE T R ZONE 4 THERMOSTATS ZONE 3 T ZONE 2 2 W T R 3 T TW R TO EXTRA ZONE MODULE T 4 R 1VA 24 VAC COMMON T STAT T STAT 15 VA 2 7K SILKSCREEN 1 2K L1 L2 TO ARM L N ON PRIORITY ZONE ELECTRONIC FUSE VAC CIRCUIT ON 120 L...

Страница 38: ... 4 USE FULL PORT ZONE VALVE FOR OPTIMUM TANK PERFORMANCE CONSIDER USING ZONE CIRCULATOR SEE FIGURE 13 CIRCULATOR SHUT OFF VALVE PRESSURE REDUCER VALVE CHECK VALVE BALL VALVE AIR SEPARATOR ZONE VALVE HOSE BIB FLOW CONTROL VALVE EXPANSION TANK NOTE RECOMMENDED FOR ANTIFREEZE APPLICATIONS SEE NOTE Piping Diagram 6 Primary Secondary Multizone System Piping With Zone Valves And Domestic Hot Water With ...

Страница 39: ...VAC CIRCUIT ON 120 L2 N O 4 N C 4 AR822 TT TT T T R W 24V C 5 6 6 RELAY TRANSFORMER N O N C 24VAC 15 VA 24VAC L1 3 FACTORY INSTALLED JUMPER ZONE VALVE PUMP PRIORITY ZR ZC DPM 2 OPTION SWITCH ZC ON STATUS PRIORITY ON PRIMARY PUMP PRIORITY PUMP X X CONTACT ZR ON T T T T T T T T 1 2 3 4 PRI ZONE 1 2 3 4 ZONE 2 1 2 3 4 ZONE 3 1 2 3 4 ZONE 4 ON N L N L N L ZR ZC 120 VAC PRIORITY PUMP PRIMARY PUMP FROM ...

Страница 40: ...USE FULL PORT ZONE VALVE DHW CIRCULATOR PUMP CH CIRCULATOR PUMP WATER INLET CIRCULATOR PUMP SHUT OFF VALVE PRESSURE REDUCER VALVE CHECK VALVE BALL VALVE AIR SEPARATOR ZONE VALVE HOSE BIB FLOW CONTROL VALVE EXPANSION TANK NOTE RECOMMENDED FOR ANTIFREEZE APPLICATIONS SEE NOTE Piping Diagram 7 Primary Secondary Piping With Zone Valves And Domestic Hot Water With Circulator 40 ...

Страница 41: ... ON 120 L2 N O 4 N C 4 AR822 II T T R W 24V C 5 6 6 RELAY TRANSFORMER N O N C 24VAC 15 VA 24VAC L1 3 FACTORY INSTALLED JUMPER ZONE VALVE PUMP PRIORITY ZR ZC DPM 2 OPTION SWITCH ZC ON STATUS PRIORITY ON PRIMARY PUMP PRIORITY PUMP X X CONTACT ZR ON T T T T T T T T 1 2 3 4 PRI ZONE 1 2 3 4 ZONE 2 1 2 3 4 ZONE 3 1 2 3 4 ZONE 4 ON N L N L N L ZR ZC 120 VAC PRIORITY PUMP PRIMARY PUMP FROM BOILER X X TRA...

Страница 42: ...E 3 WAY MIXING VALVE AIR SEPARATOR HOSE BIB EXPANSION TANK BOILER ALTERNATE CIRCULATOR LOCATION TO SYSTEM FROM SYSTEM V2 V1 CIRCULATOR SHUT OFF VALVE PRESSURE REDUCER VALVE CHECK VALVE BALL VALVE AIR SEPARATOR ZONE VALVE EXPANSION TANK WATER INLET SYSTEM CIRCULATOR Piping Diagram 8 Bypass Piping Automatic Mixing Valve Piping Diagram 9 Bypass Piping Fixed Low Temp Only 42 ...

Страница 43: ...OL VALVE 4 WAY MIXING VALVE EXPANSION TANK 12 MAX 12 MAX CIRCULATOR SHUT OFF VALVE PRESSURE REDUCER VALVE CHECK VALVE BALL VALVE AIR SEPARATOR 3 WAY MIXING VALVE TO SYSTEM FROM SYSTEM ALTERNATE CIRCULATOR LOCATION ALTERNATE CIRCULATOR LOCATION BOILER 1 BOILER 2 EXPANSION TANK WATER INLET Piping Diagram 10 Bypass Piping 4 Way Valve Option With Circulator On Supply Piping Diagram 11 Multiple Boiler ...

Страница 44: ...E TO BOILER T T TO BOILER T T TERMINALS 1 2 TRANSFORMER 24VAC 40 VA Black White Yellow Yellow DHW C1 DHW C2 CH C2 CH C1 A2 DWH T1 DHW T2 A1 BOILER CONTROL PANEL CH T1 CH T2 L1 L2 120 V WHITE BLACK BOILER 1 CIRC DHW C1 DHW C2 CH C2 CH C1 A2 DWH T1 DHW T2 A1 BOILER CONTROL PANEL CH T1 CH T2 L1 L2 BOILER 2 CIRC AMB 8 BOILER 1 BOILER 2 IF USING REQ ACK CONNECT HERE TT THERMOSTAT DRY CONTACT IF USING E...

Страница 45: ...45 ...

Страница 46: ...46 ...

Страница 47: ...NOTES ...

Страница 48: ...Date Service Performed Company Name Tech Initials Company Address Phone ...

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