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8

 

PART 2 

AIR INLET AND VENTING 

 

It is extremely important to follow these venting 
instructions carefully. Failure to do so can cause severe 
personal injury, death or substantial property damage.  

2.1 

GENERAL VENTING GUIDE 

The DynaMax HS Wall Hung is a category IV condensing 
appliance, 97% efficient unit. The DynaMax HS Floor Mount 
is a category II condensing appliance, 97% efficient. 

 

The 

DynaMax 

HS 

may 

be 

vented 

with: 

manufactured prefabricated UL/ ULC listed vents of 
AL29-4C or 316L stainless steel or with plastic vent 
certified  to  UL/  ULC  S636,  such  as,  IPEX  System 
636  CPVC  or  IPEX  System  636  PVC  or  as 
permitted by local jurisdictions. 

 

The  DynaMax  HS  boiler  must  be  vented  and 
supplied  with  combustion  and  ventilation  air  as 
described  in  this  section.  Ensure  that  the  venting 
and  combustion  air  supply  complies  with  these 
instructions. 

 

Installations  must  be  in  accordance  with  Part  7, 
“Venting  of  Equipment”,  of  the  latest  edition  of  the 
National  Fuel  Gas  Code,  ANSI  Z223.1  for  US 
installations  or  the  latest  edition  of  CAN/CGA 
Standard  B149  Installation  Code  for  Gas  Burning 
Appliances and Equipment in Canada. 

 

The  distance  of  the  vent  terminal  from  adjacent 
buildings, windows that open and building openings 
MUST comply with the latest edition of the National 
Fuel  Gas  Code,  ANSI  Z223.1  for  U.S.  installations 
or  CAN/CGA  Standard  B149  Installation  Code  for 
Canadian Installations.  

 

Vent  connection  is  made  directly  to  the  flue  outlet 
opening  on  top  of  the  unit  for  the  wall  mount  unit 
and  at  the  back  of  the  unit  for  floor  mount.  The 
connection  from  the  appliance  vent  to  the  stack 
must be made as direct as possible. The first 3 feet 
of  vent  from  the  appliance  flue  outlet  must  be 
readily accessible for visual inspection. 

 

Vent  connectors  serving  appliances  vented  by 
natural draft shall not be connected into any portion 
of  a  mechanical  draft  system  operating  under 
positive pressure.  

 

A  UL  listed  concentric  vent/air  intake  kit  may  be 
used with the DynaMax HS. 

 

Horizontal  runs  of  vent  pipe  shall  be  securely 
supported  (approximately  every  4  feet)  to  prevent 
sagging  and  maintain  a  minimum  upward  slope  of 
¼” per foot from the appliance to the vent terminal. 

 

The  weight  of  the  venting system  must  not  rest  on 
the  unit.  Adequate  support  of  the  venting  system 
must  be  provided  in  compliance  with  local  codes 
and other applicable codes. 

 

All  connections  should  be  secured  and  sealed  per 
the  vent  manufacturer’s  specifications.  When  a 
positive  vent  system  is  disconnected  for  any 
reason, the flue must be reassembled and resealed 
according to the vent manufacturer’s instructions.  

 

Do  not  use  an  existing  chimney  as  a  raceway  if 
another appliance or fireplace is vented through the 
chimney. 
 

 

Inspect completed vent and air supply piping 
thoroughly to ensure all connections are sealed and 
are in compliance with the instructions provided and 
satisfy requirements of all applicable codes. 

NOTE 

All  vent  pipes  must  be  properly  assembled  and  supported, 
and the exhaust must be pitched a minimum of 1/4 inch per 
foot back to the boiler. All components used to fabricate and 
assemble  the  vent  system  are  to  originate  from  the  same 
supplier.  

Equivalent length of fittings depend on centre line radius of 
the fitting. Consult published tables or the vent supplier for 
accurate equivalent lengths. 

Example: 30 feet of CPVC pipe + (3 x 5 feet) 90

o

  (1 

x 3 feet) 45

o

 elbow = 48 equivalent feet of piping for 

centerline radius of 1.5D, where D is the pipe diameter. 

2.2 

CATEGORY IV VENTING 

A  category  IV  appliance  is  individually  vented  through  a 
dedicated vent.  

The  DynaMax  HS  Wall  Hung  boilers/  water  heaters  shall 
only be vented as a Category IV appliance.  

Both Wall Hung and Floor Mount appliances shall be vented 
using  sealed  positive  vent  suitable  for  a  condensing 
appliance with the following venting options: 

1)  Sidewall or rooftop termination where both the vent and 

combustion air inlet air are in the same zone. The inlet 
and vent terminals are to be installed with a minimum 
12” separation distance between centerline of inlet and 
centerline of exhaust. Refer to Fig. 8, 9, and 10 for 
sidewall termination and Fig. 11 for rooftop termination. 

2)  Sidewall termination with vent and combustion air inlet 

from separate zones.  

3)  Single Pipe thru wall or rooftop venting with combustion 

air inlet from the boiler room. 

NOTE 

Vent Option 3 not recommended for R-2000 homes or 
equivalent air tight construction. 

2.2.1 

Approved Venting Materials Category IV 

1)  PVC  and  CPVC  (Chlorinated  Polyvinyl  Chloride) 

Schedule 40 approved to ULC S636. 

2)  Manufactured  prefabricated  UL/ULC  listed  vent  of  AL29-

4C or 316L stainless steel. Use of 316L is limited to use in 
applications  where  there  is  no  possibility  of  contaminants 
in the air such as refrigerants, chlorine etc. 

3)  PVC-DWV approved to comply with ANSI/ASTM D2665 

(US Jurisdictions ONLY when permitted) 

4)  PVC Schedule 40 approved to comply with ANSI/ASTM 

D1785. (US Jurisdictions ONLY when permitted) 

5)  CPVC  Schedule  40  approved  to  comply  with 

ANSI/ASTM  F441.  (US  Jurisdictions  ONLY  when 
permitted) 

6)  Polypropylene approved to comply with ULC S636 

 

 

 
 
 
 

Summary of Contents for DynaMax DMH081

Page 1: ...mage personal injury or death Do not store or use gasoline or other flammable vapours and liquids in the vicinity of this or any other appliance WHAT TO DO IF YOU SMELL GAS o Do not try to light any a...

Page 2: ......

Page 3: ...NATION AND AIR INLET CLEARANCES 10 2 5 1 Sidewall Venting 10 2 5 2 Sidewall Air Inlet 10 2 5 3 Sidewall Concentric Vent Air 11 2 6 Vertical Direct Venting 11 PART 3 GAS CONNECTION 13 3 1 GAS CONNECTIO...

Page 4: ...NANCE 51 9 1 EXAMINE THE VENTING SYSTEM 51 9 2 VISUALLY CHECK MAIN BURNER FLAMES 51 9 3 CLEANING BOILER HEAT EXCHANGER 51 9 4 CONDENSATE TREATMENT 52 9 5 IGNITER AND FLAME SENSOR ELECTRODES 52 9 6 CHE...

Page 5: ...0 12 LOCAL REMOTE SWITCH 59 10 13 MODBUS LOCAL SWITCH 59 10 14 APPLIANCE 59 PART 13 PIPING DIAGRAMS 60 PART 14 EXPLODED VIEW PARTS LIST 65 PART 15 ELECTRICAL DIAGRAMS 73 15 1 DM 80 299 INTERNAL WIRING...

Page 6: ...QUENCE OF OPERATION 1 Power switch is placed in the ON position 2 Minimum 120 VAC 60Hz single phase 15A circuit is supplied to the DynaMax HS field connection board 3 24Vac power is supplied to the Dy...

Page 7: ...bustion and proper venting 1 6 INSTALLATION CODES The equipment shall be installed in accordance with those installation regulations enforced in the local area where the installation is to be made The...

Page 8: ...pecting and cleaning the heat exchanger and vent pipe 1 Turn off electrical power and main manual gas shut off and allow appliance to cool down 2 Remove the vent pipe at connection to heat exchanger a...

Page 9: ...ndoors where it is protected from exposure to wind rain and weather The appliance designed for outdoor installation Outdoor Models must be installed outdoors Always consider the use of a shelter such...

Page 10: ...ifications Model Depth Dim A in Dim B in Equivalent Length of Vent Air Intake Pipes at Recommended Diameter in Water Connection at Boiler in NPT Gas Connection at Boiler in NPT Over 25 and up to 100 O...

Page 11: ...t Recommended Diameter in Water Conn at Heater in NPT Gas Conn at Boiler in NPT Category IV CAT II Comb Vents Over 25 and up to 100 Over 15 and up to 25 Up to 15 210 36 22 3 4 14 1 4 23 24 1 4 34 1 4...

Page 12: ...7 Figure 5 DynaMax HS Wall Hung Service Clearances Figure 6 DynaMax HS Floor Mount Service Clearances...

Page 13: ...tive vent system is disconnected for any reason the flue must be reassembled and resealed according to the vent manufacturer s instructions Do not use an existing chimney as a raceway if another appli...

Page 14: ...onal designer acceptable to the authority having jurisdiction 1 The DynaMax HS Floor Mount boiler may be vented as a Category II appliance using sealed vent suitable for a condensing appliance 2 3 1 A...

Page 15: ...nterline radius 4 Vent outlet shall terminate at least 12 0 30m away from any forced air inlet Vent must be at least 7 feet 2 15m above grade when located adjacent to public walkways due to normal for...

Page 16: ...dence 7 Position termination so they are not likely to be damaged by foreign objects or exposed to a build up of debris 8 Flue gas condensate can freeze on exterior walls or on the vent cap Frozen con...

Page 17: ...Concentric Vent Vertical Venting CAUTION Do not operate appliance with the terminal cap removed as this may result in the recirculation of flue products Water may also flow into the combustion air pip...

Page 18: ...the size of the connection on the appliance Sizing based on Table 8 is recommended depending on model Before operating the appliance the complete gas train and all connections must be tested using so...

Page 19: ...ess The valve is a 1 1 negative pressure gas valve The valve performs the functions of a pressure regulator safety shutoff and air gas ratio control Full closing of the valve seat occurs in less than...

Page 20: ...If the appliance is installed above radiation level it must be provided with a low water cut off device at the time of appliance installation available from Camus Some local codes require the install...

Page 21: ...ntable heat exchanger damage Table 10 Minimal System Pipe Size Input BTU hr Water Size NPT in 80 000 1 100 000 1 150 000 1 199 000 1 1 4 250 000 1 1 4 299 000 1 1 2 399 000 2 500 000 2 600 000 2 700 0...

Page 22: ...99 000 12 6 7 2 10 8 5 8 250 000 15 8 11 5 13 5 8 7 299 000 18 9 9 3 16 2 7 0 399 000 25 2 8 4 21 6 6 3 500 000 31 5 9 2 27 0 6 9 600 000 38 8 17 5 32 0 11 8 700 000 45 3 18 2 40 0 14 4 800 000 51 8 2...

Page 23: ...ted every six months The normally open switch contact of the low water cutoff is to be wired in series with the flow switch This can be wired into the DynaMax HS terminal labelled Flow Switch CAUTION...

Page 24: ...be horizontal for at least an inch to ensure sufficient electrical conductivity 5 2 HIGH LIMIT A manual reset fail safe high limit aqua stat control is inside the appliance and the control bulb is in...

Page 25: ...utdoor sensor fault 105 Flame detected out of sequence 106 Flame lost in Main Flame Establishing Period MFEP 107 Flame lost early in run 108 Flame lost in run 109 Ignition failed 112 Pilot test flame...

Page 26: ...ay between stages minimum on time per stage minimum off time per stage Flame failure signal Error message display in text Manual override of boiler input rate for combustion Pump exercising feature ru...

Page 27: ...shooting information on the diagnostic screen Figure 25 Diagnostic Screen PARAMETER DESCRIPTION Boiler pump Pump A Auxilary Pump Pump B 3 way valve diverter operation DHW Pump Pump C Additional contac...

Page 28: ...int Modulates on boiler inlet sensor default Heat demand is generated when Remote Operator is closed 1 Place both toggle switches to LOCAL 2 Press and select Login 3 Select Quick Start 4 Select CH Set...

Page 29: ...switches to LOCAL 2 Press and select Login 3 Select Advanced Setup 4 Select CH Config 5 Select Outdoor Reset Config 6 Select Outdoor Reset and Press and select Enable 7 Set Max outdoor temp Warm weath...

Page 30: ...Connect Outdoor Sensor to J3 ECOM connector 4 Place both toggle switches in LOCAL 5 Press and select Login 6 Select Advanced Setup 7 Select CH Config 8 Select Outdoor Reset Config 9 Select Outdoor Res...

Page 31: ...structions Boiler operates with variable setpoint determined by 4 20mA incoming signal Modulates on header sensor Heat demand is generated when Remote Operator is closed and 4 20mA or 0 10Vdc signal i...

Page 32: ...CAL 2 Press and select Login 3 Select Advanced Setup 4 Select DHW Config Inlet Sensor operation 5 Select Demand switch Sensor only and Press 6 Select Mod sensor Inlet and Press go to step 7 DHW Stat o...

Page 33: ...eat demand is generated when Remote Operator is closed DHW Sensor Stat if required 1 Place both toggle switches in LOCAL 2 Press and select Login 3 Select Advanced Setup 4 Select DHW Config 5 Select D...

Page 34: ...address 1 7 Verify MB2 Modbus address 1 8 Select Lead Lag Config 9 Select Lead Lag Master Config 10 Select Master enable Enable Fixed Setpoint operation 11 Select Setpoint and enter desired setpoint u...

Page 35: ...ches in LOCAL 2 Press and select Login 3 Select Advanced Setup 4 Select System 5 Select System ID Access 6 Select MB1 Modbus address 2 To be in sequential order 7 Select MB2 Modbus address 2 To be in...

Page 36: ...mp src and Press 6 Select S5 and Press Master Boiler 7 Place both toggle switches in LOCAL 8 Press and select Login 9 Select Advanced Setup 10 Select Lead Lag Config 11 Select Lead Lag Outdoor Reset 1...

Page 37: ...t after Interstage delay 2 minutes a lag boiler will be brought online and will also fire at the base load rate specified Modulation of boilers will only occur after all boilers in the Lead Lag system...

Page 38: ...1 equalize run time default Add stage error threshold 718 0 130 o C Default 5 o F 3 o C Add stage inter stage delay 722 0 64800 seconds Default 120 seconds Drop stage threshold 727 0 130 o C Default 5...

Page 39: ...23 3 233 0 17 8 178 10 12 2 122 20 6 7 67 30 1 1 11 40 4 4 44 50 10 0 100 60 15 6 156 70 21 1 211 80 26 7 267 90 32 2 322 100 37 8 378 110 43 3 433 120 48 9 489 130 54 4 544 140 60 0 600 150 65 6 656...

Page 40: ...n LOCAL 2 Press and select Login 3 Select Advanced Setup 4 Select Burner Control Ignition 5 Select Adjustable lightoff rate and enter desired lightoff rate using 5 way control and press Adjust stack l...

Page 41: ...iption Programming Instructions To view burner run time pump cycles for maintenance and service purposes 1 Place both toggle switches in LOCAL 2 Press and select Login 3 Select Advanced Setup 4 Select...

Page 42: ...e deposit on the sensor rod must be removed with steel wool DO NOT use sand paper or grit cloth since this will contaminate the metal surface 7 3 COMBUSTION AIR FAN DynaMax HS uses a modulating air fa...

Page 43: ...from the system Verify that wiring is correct Flame Failure Pressing the manual OK button on the DynaMax HS Control Panel to restart the ignition sequence The boiler has failed to ignite the burner af...

Page 44: ...ocedure Clean or replace the burner if required Air in the piping system Purge all air from the piping system Incorrect igniter gap Check that spark gap is 9 64 Auto Reset High Limit Trips The outlet...

Page 45: ...are wired correctly Measure the resistance of the sensors 10k sensors Replace the sensor if necessary Fan Not Turning Fan refuses to rotate Alert 122 123 128 129 130 131 132 Check fan power wires Fan...

Page 46: ...Burner switch turned OFF 30 Burner switch turned ON 47 Flame rod to ground leakage 49 Abnormal 24Vac voltage 50 Modulation Fault 61 Anti short Cycle 62 Fan speed not proved 67 Interlock Off safety cir...

Page 47: ...turn at a time NO Verify gas valve is being powered by ignition control Check ignition speed is between 2500 to 3000 RPM using System Monitor NO Adjust ignition speed to 3000 RPM YES YES Burner light...

Page 48: ...tripped optional To identify the safety that is open set the multimeter to Vac and measure the voltage from one contact to ground The contacts produce a 24Vac when the circuit is closed Is vent and o...

Page 49: ...closed Is pump powered NO Check pump wiring and pump delay relay YES Is there a current transformer NO Check operation of paddle style flow switch installed on outlet of DynaMax HS YES Use meter to v...

Page 50: ...150 o F is selected and PVC venting is used the setpoint must be reduced to below 150 o F to avoid nuisance flame failures If a setpoint greater than 150 o F is required venting with CPVC AL29 4C 316...

Page 51: ...rod Is Flame sensor plug secure NO Fasten flame sensor plug securely to flame sensor wire and check for corrosion deposits at wire terminals YES Check continuity of flame sensor wire from flame sensor...

Page 52: ...x HS must be firing before proceeding DM 080 250 260 Figure 56 Venturi Gas Valve Assembly To adjust the high fire setting 1 Press the button 2 Select Test and press 3 Select Forced Rate and press 4 Se...

Page 53: ...1 Press the button 2 Select Test and press 3 Select Forced Rate and press 4 Select Set High Fire Locate the input adjustment screw on the top side of the gas valve Turn the screw 1 8 turn in either w...

Page 54: ...uction of air flow to the burner Yellow Flames Yellow flames can be caused by blockage of primary air flow to the burner or excessive gas input This condition MUST be corrected immediately If improper...

Page 55: ...eplace neutralizer medium as required There are several factors affecting amount of condensation created by the appliance however for rough approximation use Condensation Volume US Gallon Hr Input MBH...

Page 56: ...re when removing and handling the burner Sharp objects or impact may damage or tear the metal fiber surface rendering the burner unfit for service 9 8 REMOVAL OF COMBUSTION CHAMBER LINING The combusti...

Page 57: ...an be provided by using hydronic system antifreeze Follow the manufacturer s instructions DO NOT use undiluted or automotive type antifreeze Shut down and draining If for any reason the unit is to be...

Page 58: ...used The expansion tank must be installed close to the boiler and on the suction side of the system pump appliance Inlet to ensure proper operation Caution This appliance should not be operated at les...

Page 59: ...y loop 2 Check system for any water leaks 3 Check system for installation of glycol or water treatment where required Where glycol has been used to maintain the temperature rise across the appliance c...

Page 60: ...se 4 Be sure all valves are open between the hot water heater and the storage tank Ensure that all ball valves are fully ported 5 Check the pump to be sure it is running properly and that the pump mot...

Page 61: ...emain the same Lead lag Lead lag setpoint Add stage Error threshold AND Lead lag Lead lag setpoint Drop stage Error threshold 3 A boiler should stop Lead lag Lead lag setpoint Drop stage Error thresho...

Page 62: ...Local Remote switch is independent of the 4 20mA 2 10Vdc signal 10 13 MODBUS LOCAL SWITCH The Modbus Local Switch mounted on the terminal board is designed to relay the signal to the boiler display lo...

Page 63: ...eader to minimize induced flow through zones 2 Separate boiler loop as shown is recommended for system piping greater than 50 equivalent feet Pressure Reducing Valve Pressure Gauge Ball Valve Air Sepa...

Page 64: ...Valve Air Separator Expansion Tank Zone Circulator Flow Check Valve DynaMax HS Boiler Temperature Pressure Gauge Drain Union Anti scald Mixing Valve Note 1 Size main header to minimize induced flow th...

Page 65: ...Separator Expansion Tank Zone Circulator Flow Check Valve DynaMax HS Boiler Temperature Pressure Gauge Drain Union Anti scald Mixing Valve Note 1 Size main header to minimize induced flow through zone...

Page 66: ...63 Figure 34 Single Boiler Hydronic Heating Direct Storage Tank Zoned Piping Arrangement Cold Water In DHW Sensor Union Direct DHW Tank Anti Scald Mixing Valve Cold Water In Hot Water Out...

Page 67: ...Flow Check Valve DynaMax HS Boiler Master M1 Temperature Pressure Gauge Drain Union DynaMax HS Boiler Slave S2 System Sensor Note 1 Size main header to minimize induced flow through zones 2 Location...

Page 68: ...65 PART 14 EXPLODED VIEW PARTS LIST DYNAMAX HS WALL HUNG...

Page 69: ...66 DYNAMAX HS FLOOR MOUNT...

Page 70: ...ge Nuts GM10 05 012 X 5 Igniter GM10 35 108 01 X X X X X X X X X X GM10 35 161 01 X X X 6 Flame Sensor GM10 35 109 01 X X X X X X X X X X GM10 35 162 00 X X X 7 Igniter Flame Sensor Screws GM10 05 020...

Page 71: ...X VCZND6100 U X VBN3EM3POX X X VBN3FP3POX X X X 18 High Limit TCL085A X TCL110A X 19 Turn Lock Wall Hung X Floor Mount X 20 Wall Mount Back Panel 14 5402 X X X 14 5402 250 X X 21 Wall Mount Front Bot...

Page 72: ...X 14 5505 60 75 X X X 43 Side Panel Right 14 5506 20 25 X X 14 5506 X X X 14 5506 60 75 X X X 44 Side Panel Left 14 5507 20 25 X X 14 5507 X X X 14 5507 60 75 X X X 45 Front Panel Bottom 14 5508 X X...

Page 73: ...ange with 3 Street Elbow 44 0009 X 4 Air Intake Box 14 5551 X X 5 Air Intake Box 14 5546 X 69 3 Air Intake Adapter 44 0010 X 4 Air Intake Adapter 14 5559 X X 5 Air Intake Adapter 14 5556 X 70 Condensa...

Page 74: ...X X X X 91 DynaMax HS Fan Discharge Orifice 14 0377 80 X X 14 0377 100 X 14 0377 250 X X 92 Expandable Air Inlet Adapter w o Pressure Test Point 14 0378 X X X X X 93 Expandable Air Inlet Adapter 1056...

Page 75: ...t Mixing Chamber Gasket 33 0036 X X X X X X X 33 0037 X X X X X X X X X 33 0038 X 33 0043 X X X 33 0057 X X X 106 Air Inlet Gasket 33 0069 X X X 107 Current Transformer Combination Models only RIBXRA...

Page 76: ...73 PART 15 ELECTRICAL DIAGRAMS 15 1 DM 80 299 INTERNAL WIRING DIAGRAM...

Page 77: ...74 15 2 DM 399 800 INTERNAL WIRING DIAGRAM...

Page 78: ...75...

Page 79: ...ough sequential Modbus addresses Connect the system sensor to the master boiler The master boiler will use the water temperature in the primary loop to control the operation of the lead lag setup If o...

Page 80: ...s C2 Vdc Display J4 2 3 DHW Pump 1 6hp 4 24Vac or 115Vac for pump contact 5 6 3 way diverter valve 7 Boiler pump contact 10 24Vac return 12 Ground J5 1 Interlock 2 Gas Valve contact J6 1 Blocked Flue...

Page 81: ...excluded however if caused by appliance operation at large changes exceeding 150 F between the water temperature at inlet and appliance temperature or operating at temperatures exceeding 210o F BURNE...

Page 82: ...uilt water heaters and heating boilers as well as a into every single unit For more information supplier of specialty HVAC products Our service line is open 24 hours 7 days a week on our innovative pr...

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