Camus Hydronics DFW1100 - PART 2 VENTING; 2.1 GENERAL VENTING GUIDE; 2.2 CONVENTIONAL VENTING (INDOOR) INSTALLATIONS; 2.3 OUTDOOR VENTING

Table of Contents
PART 1 GENERAL INFORMATION..............................................................................................................................................................1
1.1 INTRODUCTION ...................................................................................................................................................................................1
1.2 SPECIAL INSTRUCTIONS TO OWNER...............................................................................................................................................1
1.3 CHECKING EQUIPMENT .....................................................................................................................................................................1
1.4 WHAT THE LIGHTS MEAN ON YOUR CAMUS APPLIANCE .............................................................................................................2
1.5 HOW IT OPERATES (SEQUENCE OF OPERATION) .........................................................................................................................2
1.5.1 IGNITION PROCESS .................................................................................................................................................................3
1.5.2 HEAT TRANSFER PROCESS ...................................................................................................................................................3
1.5.3 END OF SEQUENCE .................................................................................................................................................................3
1.6 CODES..................................................................................................................................................................................................3
1.7 WARRANTY ..........................................................................................................................................................................................4
1.8 REMOVAL OF EXISTING APPLIANCE ................................................................................................................................................4
1.9 BOILER ROOM OPERATING CONDITION..........................................................................................................................................5
1.10 INSTALLATION PROCEDURE LOCATION OF UNIT ..........................................................................................................................5
1.11 Clearance from Combustible Material ...................................................................................................................................................5
PART 2 VENTING .........................................................................................................................................................................................7
2.1 GENERAL VENTING GUIDE ................................................................................................................................................................7
2.1.1 CATEGORY I AND CATEGORY Ill VENTING ...........................................................................................................................7
2.1.2 Venting Guidelines for Category I and/or Ill Venting...................................................................................................................7
2.1.3 CATEGORY II AND CATEGORY IV VENTING .........................................................................................................................8
2.1.4 Venting Guidelines for Category II and/or IV Venting.................................................................................................................8
2.1.5 APPROVED VENTING MATERIALS .........................................................................................................................................8
2.1.6 VENT TERMINATION CLEARANCES .......................................................................................................................................8
2.1.7 INLET CAP FOR ROOFTOP TERMINATION............................................................................................................................8
2.1.8 LOCATION OF A ROOFTOP AIR INLET AND VENT CAPS.....................................................................................................8
2.1.9 AIR INLET DAMPER ..................................................................................................................................................................9
2.1.10 MASONARY CHIMNEY INSULATIONS ....................................................................................................................................9
2.1.11 Vertical Venting Termination ......................................................................................................................................................9
2.1.12 COMBINED COMBUSTION AIR INLET.....................................................................................................................................9
2.1.13 DRAIN TEE.................................................................................................................................................................................9
2.2 CONVENTIONAL VENTING (INDOOR) INSTALLATIONS ................................................................................................................10
2.2.1 Air Required For Combustion and Ventilation ..........................................................................................................................10
2.2.2 EXHAUST FANS ......................................................................................................................................................................10
2.3 OUTDOOR VENTING .........................................................................................................................................................................11
2.4 THRUWALL VENTING........................................................................................................................................................................11
2.4.1 THRUWALL Vent Cap (14-0090) THRUWALL Intake Air Cap (14-0101) ................................................................................11
2.4.2 Location of A THRUWALL Vent Termination ...........................................................................................................................11
2.4.3 LOCATION OF A “THRUWALL” AIR INLET CAP ....................................................................................................................12
2.4.4 AIR INLET DAMPER ................................................................................................................................................................12
2.4.5 LENGTH OF AIR INLET PIPE..................................................................................................................................................12
PART 3 GAS CONNECTION ......................................................................................................................................................................12
3.1 GAS CONNECTION...........................................................................................................................................................................12
3.2 GAS PIPING........................................................................................................................................................................................13
3.3 INSTALL PIPING................................................................................................................................................................................13
3.4 DIFFERENTIAL AIR PRESSURE .......................................................................................................................................................13
3.5 GAS MANIFOLD DIFFERENTIAL PRESSURE ADJUSTMENT........................................................................................................13
3.6 CHECKING GAS SUPPLY PRESSURE ............................................................................................................................................14
3.7 CHECKING DIFFERENTIAL AIR AND GAS PRESSURES ..............................................................................................................14
3.8 GAS TRAIN AND CONTROLS............................................................................................................................................................15
3.9 RATIO GAS VALVE ............................................................................................................................................................................15
3.10 VENTING OF GAS VALVES AND PRESSURE SWITCHES ............................................................................................................15
3.10 BURNER .............................................................................................................................................................................................15
PART 4 WATER CONNECTION .................................................................................................................................................................16
4.1 FREEZE PROTECTION......................................................................................................................................................................16
4.2 WARNING REGARDING CHILLED WATER SYSTEMS ....................................................................................................................16
4.3 INLET AND OUTLET CONNECTIONS...............................................................................................................................................17
4.4 MINIMUM PIPE SIZE REQUIREMENTS ............................................................................................................................................17
4.5 PRIMARY HEAT EXCHANGER..........................................................................................................................................................17
4.6 LOW WATER TEMPERATURE SYSTEMS (non -condensing)..........................................................................................................17
4.7 INSTANTANEOUS WATER HEATER (non-condensing) ...................................................................................................................18
4.8 CONDENSER HEAT RECOVERY MODULE (CHRM) .......................................................................................................................18
4.9 CHRM, FLOW and PRESSURE DROP ..............................................................................................................................................19
4.10 WATER FLOW SWITCH (shipped loose) ...........................................................................................................................................19
4.11 LOW WATER CUTOFF (If Equipped) ................................................................................................................................................19
4.12 RELIEF VALVE (shipped loose)..........................................................................................................................................................20
4.13 CONDENSING HEAT RECOVERY MODULE PIPING CONFIGURATIONS .....................................................................................20
4.13.1 CHRM IN SERIES WITH PRIMARY HEAT EXCHANGER (INTEGRATED LOOP) ................................................................20
4.14 CIRCULATING PUMP SELECTION ...................................................................................................................................................20
4.14.1 CIRCULATING PUMP OPERATION PRIMARY HEAT EXCHANGER....................................................................................20
4.14.2 CIRCULATING PUMP SELECTION CONDENSOR ...............................................................................................................20
PART 5 ELECTRICAL & CONTROLS.........................................................................................................................................................21
5.1 ELECTRICAL CONECTIONS .............................................................................................................................................................21
5.2 VARIABLE FREQUENCY DRIVE (VFD).............................................................................................................................................21
5.3 DIFFRENTIAL AIR PRESSURE SWITCH ..........................................................................................................................................21