Page 2 - Table of Contents
2 Table of Contents I. Product Description .................................................................. 3 II. Specifications ........................................................................... 3 III. Before Installing .......................................................................
Page 3 - I Product Description; systems containing significant amounts of dissolved oxygen.; II Specifications
3 Table 2.2: Specifications MODEL* NO. OF SECTIONS MAXIMUM INPUT (BTU/hr) MINIMUM INPUT (BTU/hr) D.O.E. HEATING CAPACITY (BTU/hr) IBR NET RATING (BTU/hr) AFUE (%) VENT COLLAR DIAMETERS (IN.) INLET EXHAUST CHG150 3 150,000 30,000 135,000 117,000 93.1 4 3 CHG225 4 225,000 56,250 202,000 176,000 94.2 4...
Page 4 - III Before Installing; National Fuel Gas Code; IV Locating the Boiler; NOTICE; ThIs PrODuCT musT bE INsTallED by a lICENsED PlumbEr Or gas fITTEr
4 III Before Installing 1) Safe, reliable operation of this boiler depends upon installation by a professional heating contractor in strict accordance with this manual and the authority having jurisdiction. • In the absence of an authority having jurisdiction, installation must be in accordance with...
Page 5 - Figure 4.1: Clearances To Combustible Or non-combustible Material
5 Table 4.2: Clearances From Vent Piping To Combustible Construction TYPE OF VENT PIPE PIPE DIRECTION ENCLOSURE MINIMUM CLEARANCE TO COMBUSTIBLE MATERIAL BURNHAM AL29-4C ALTERNATE: HEAT FAB SAF-T VENT PROTECH FASNSEAL Z-FLEX Z-VENT III FLEX-L STAR-34 VERTICAL OR HORIZONTAL AT LEAST ONE SIDE OPEN, CO...
Page 6 - warNINg; THE MANUFACTURER’S WARRANTY.; V Air for Ventilation; tional Fuel Gas Code
6 warNINg OUTDOOR COMBUSTION AIR MUST BE PIPED TO THE AIR INTAKE. NEVER PIPE COMBUSTION AIR FROM AREAS CONTAINING CONTAMINATES SUCH AS SWIMMING POOLS AND LAUNDRY ROOM EXHAUST VENTS. CONTAMINATED COMBUSTION AIR WILL DAMAGE THE BOILER AND MAY CAUSE PROPERTY DAMAGE, PERSONAL INJURY OR LOSS OF LIFE AND ...
Page 8 - VI Venting; • Do not obtain combustion air from within the building.; A. Vent System Design; obtained through a separate pipe from outside.
VI Venting warNINg Failure to vent this boiler in accordance with these instructions could result in unreliable boiler operation, severe damage to the boiler or property, or unsafe operation:• Do not attempt to vent this boiler with galvanized, PVC, or any other vent system not listed in Table 4. • ...
Page 10 - Table 6.2a: Summary of Horizontal Venting Options; they be less than 12” above grade level.
10 Table 6.2a: Summary of Horizontal Venting Options VENT OPTION # 1 2 3 4 5 CLASSIFICATION USED IN THIS MANUAL HORIZONTAL DIRECT VENT HORIZONTAL DIRECT VENT (RESERVED FOR FUTURE USE) (RESERVED FOR FUTURE USE) (RESERVED FOR FUTURE USE) ILLUSTRATED IN FIGURE 6.1 6.1 VENT PIPE STRUCTURE PENETRATION WA...
Page 11 - Table 6.2b: Summary of Vertical Venting Options
11 Table 6.2b: Summary of Vertical Venting Options VENT OPTION # 6 7 CLASSIFICATION USED IN THIS MANUAL VERTICAL DIRECT VENT VERTICAL DIRECT VENT ILLUSTRATED IN FIGURE 6.4 6.4 VENT PIPE STRUCTURE PENETRATION ROOF ROOF AIR INTAKE PIPE STRUCTURE PENETRATION ROOF ROOF VENT PIPE SIZE 3” 4” AIR INTAKE PI...
Page 12 - Figure 6.3c: Positioning Vent Terminal Under Overhangs
12 Figure 6.3a: Location of Vent Terminal Relative to Windows, Doors, Grade Figure 6.3b: Location of Vent Terminal relative to Meters and Forced air inlets Figure 6.3c: Positioning Vent Terminal Under Overhangs
Page 14 - Equivalent Length
14 VENT sysTEm COmPONENT ParT NumbEr EquIValENT fEET Of PIPE 3” DIA. PIPE X 1 FT. 8116296U 1 4” DIA. PIPE X 1 FT. 100176-01 3” DIA. PIPE X 3 FT. 8116298U 3 4” DIA. PIPE X 3 FT. 100177-01 3” DIA. PIPE X 5 FT. 8116300U 5 4” DIA. PIPE X 5 FT. 100178-01 3” DIA. PIPE x ADJUSTABLE 8116319U **EqUAL TO INST...
Page 15 - B. Removing an Existing Boiler From a Common Chimney; This section does not apply to the installation of a CHG boiler.; NEVEr COmmON VENT a Chg bOIlEr wITh OThEr aPPlIaNCEs; CauTION; inlet piping sections are connected with PVC cement.
15 B. Removing an Existing Boiler From a Common Chimney Read this only if the CHG boiler is replacing an existing boiler that is being removed from a common chimney. This section does not apply to the installation of a CHG boiler. In some cases, when an existing boiler is removed from a common chimn...
Page 16 - Figure 6.: Burnham Gasketed Vent Joint Detail
16 2) This appliance requires a Special Gas Vent. The product is designed to use Burnham supplied AL 29-4C ® Stainless Steel vent system components when utilizing the supplied vent adaptor. The following manufacturers offer similar AL 29-4C ® components and are approved for use with this product. Th...
Page 18 - support is required after any offset.
1 Figure 6.: Z-Vent iii Connection to Vent Collar i) Align the second piece of pipe with the first and push them together as far as they will go, but not less than 1-3/4”.j) Tighten gear clamp to a minimum torque of 40 in-lbs and a maximum of 50 in-lbs.k) Repeat Steps (h) – (j) for the remaining Z-V...
Page 20 - Figure 6.10: FasnSeal Connection to Vent Collar; VII Condensate Drain Line; All condensate
20 Figure 6.10: FasnSeal Connection to Vent Collar VII Condensate Drain Line 1) All condensate which forms in the boiler or vent system collects in the sump under the heat exchanger and leaves the boiler through the condensate trap. This trap allows condensate to drain from the sump while retaining ...
Page 21 - WARNING; Figure 6.11: Condensate Piping Arrangement
21 WARNING BOILER CONDENSATE IS CORROSIVE. ROUTE CONDENSATE DRAIN LINE IN A MANNER SUCH THAT ANY CONDENSATE LEAKAGE WILL NOT CAUSE PROPERTY DAMAGE.SOME JURISDICTIONS MAY REQUIRE THAT CONDENSATE BE NEUTRALIZED PRIOR TO DISPOSAL. Figure 6.11: Condensate Piping Arrangement
Page 22 - VIII Gas Piping; gas line sizing, consult the utility or the
22 VIII Gas Piping Gas piping to the boiler must be sized to deliver adequate gas for the boiler to fire at the nameplate input at an inlet pressure between the minimum and maximum values shown on the rating plate. For more information on gas line sizing, consult the utility or the National Fuel Gas...
Page 23 - Ix System Piping; A. General System Piping Precautions; DamagE aND wIll VOID ThE maNufaCTurEr’s warraNTy.; START-uP AND CHECkouT; Table .1: Flow requirements Through Boiler; BOILER MODEL
23 Ix System Piping A. General System Piping Precautions CauTION ThE hEaT ExChaNgEr usED IN ThE Chg Is maDE frOm a sPECIal alumINum allOy. FAILuRE To TAkE THE FoLLoWING PRECAuTIoNS CouLD RESuLT IN SEVERE BoILER DamagE aND wIll VOID ThE maNufaCTurEr’s warraNTy. • INSTALL BOILER SO THAT THE GAS IGNITI...
Page 24 - Method 1: Primary/Secondary Piping - Boiler in Secondary Loop; Primary Loop Piping; Calculate total equivalent length from Table 8.7:
24 Method 1: Primary/Secondary Piping - Boiler in Secondary Loop This method can be used in heat-only applications as shown in Figure 8.2 or with an indirect water heater as shown in Figure 8.3. This method relies on primary/secondary pumping to ensure that the required flow is always maintained thr...
Page 27 - Table .5: Pipe and Circulator Sizing for Boiler Loop; Table .6: Pipe and Circulator Sizing for indirect Water Heater Loop; ALLIANCETM
2 Table .5: Pipe and Circulator Sizing for Boiler Loop BOILER MODEL (a) (b) (c) (d) PIPE SIZE FLOW CIRCULATOR MODEL BOILER LOOP MAX EqUIVALENT LENGTH (in NPT) (GPM) (ft) CHG150 1 1/4 8.0 Taco 007 148 CHG150 1 1/4 8.0 Taco 0010 224 CHG225 1 1/4 12.0 Taco007 138 CHG225 1 1/4 12.0 Taco 0010 208 NOTE: F...
Page 32 - PIPE rElIEf ValVE DIsChargE TO a safE lOCaTION.
32 C: Standard Piping Installation Requirements Observe the following guidelines when making the actual installation of the boiler piping: 1) The relief valve is packaged loose with the boiler and must be installed in the location shown in Figure 1. The relief valve is set to open at 30 psi. If the ...
Page 33 - D. Piping for Special Situations
33 3) The return piping may be connected into the boiler through the back or sides of the boiler by rotating the drain elbow and routing the return piping through the appropriate knockout. 4) Circulator (Required) - Usually at least two circulators will be required to properly install a CHG Series b...
Page 35 - x Wiring; on the right side of the vestibule:; all wIrINg aND grOuNDINg musT bE DONE IN aCCOrDaNCE wITh; NATIoNAL ELECTRICAL CoDE; • WHEN MAkING LoW VoLTAGE CoNNECTIoNS, MAkE SuRE THAT No
35 x Wiring 1) Line Voltage (120 VAC) Connections (Fig 9.1) – The line voltage connections are located in the junction box on the right side of the vestibule: • Black – Line voltage “hot”• White – “Neutral” for boiler and circulators• Red – “Heating” circulator “hot”• Blue – “Indirect Water Heater “...
Page 39 - xI Start-up and Checkout; National Fuel Gas; NOTE; TraIN assEmbly PrOVIDED ON ThE bOIlEr whEN ThE bOIlEr uNDErwENT; NEVEr aTTEmPT TO fIll a hOT EmPTy bOIlEr.; VaPOrs aND lIquIDs
3 xI Start-up and Checkout Use the following procedure for initial start-up of the boiler: 1) If not already done, flush the system to remove sediment, flux, and traces of boiler additives. This should be done with the boiler isolated from the system. 2) Fill the boiler and hydronic system with wate...
Page 40 - CHG Series Lighting and operating Instructions
Page 41 - SWT; Prepurge; ThE COrrECT OuTlET PrEssurE fOr ThE gas ValVE has bEEN
41 7) Start the boiler using the lighting instructions on page 40. After the boiler is powered up, it should go through the following sequence. Sequence Display Meaning 1 U.125 or Blank Checking internal software (power-up only) 2 0.SWT Boiler in standby. SWT = Supply Water Temp. No call for heat. (...
Page 42 - position after combustion testing is complete.; Model; EaCh Chg sErIEs bOIlEr Is TEsTED aT ThE faCTOry aND aDJusTmENTs
42 Figure 10.2: Gas Valve Detail 11) Perform a combustion test. On horizontally vented units, the sample probe may be inserted into the terminal. If this is not possible, and if no sample tap is present in the vent system, remove the flue temperature sensor and insert the analyzer probe in the senso...
Page 44 - xII operation; ) The display panel has three primary modes of operation. These are:; Figure 11.1: normal Display in Standby Mode
44 xII operation 1) The CHG boiler uses a microprocessor based control, known as a “MCBA”, to manage all boiler functions including flame supervision and modulation. Two set point or “target” boiler supply temperatures are stored in the MCBA’s memory; one for space heating and one for domestic water...
Page 45 - PushINg aND hOlDINg ThE “+” whIlE IN sTaNDby mODE wIll PrEVENT ThE
45 In standby mode, it is possible to view both the heating supply set point temperature and the “domestic hot water reference set point”. The “domestic hot water reference set point” plus 45°F equals the boiler supply set point when it is responding to a call from the indirect water zone. It is not...
Page 47 - First Digit; Ignition
4 3) Two basic types of errors codes are shown on the display: • Soft Lockout Codes – When a soft lockout occurs, the boiler will shut down and the display will alternate between the number “9” and the letter “b” followed by a two digit service code. A list of these codes, and their meanings, is sho...
Page 49 - xIII Service and Maintenance; ImPOrTaNT; warraNTy DOEs NOT COVEr bOIlEr DamagE Or malfuNCTION If ThE; Continuously; WATER LEAkS CAN CAuSE SEVERE CoRRoSIoN DAMAGE To THE BoILER; labEl all wIrEs PrIOr TO DIsCONNECTION whEN sErVICINg
4 xIII Service and Maintenance ImPOrTaNT warraNTy DOEs NOT COVEr bOIlEr DamagE Or malfuNCTION If ThE fOllOwINg sTEPs arE NOT PErfOrmED aT ThE INTErVals sPECIfIED. 1) Continuously : a) Keep the area around the boiler free from combustible materials, gasoline and other flammable vapors and liquids. b)...
Page 50 - nozzle. Do not use any cleaning agents or solvents.; A soft nylon brush; may be used in accessible area.
50 d) Remove the ignition electrode and inspect it for oxides. Clean the oxides off the electrode with sandpaper. Inspect the ceramic insulator for cracks and replace the ignitor assembly as necessary. e) Remove any accumulated debris from the air inlet screen.f) Remove the attenuator hose and clean...
Page 51 - xIV Troubleshooting; Troubleshooting problems where no error code is displayed:; TuRN oFF PoWER To BoILER BEFoRE REPLACING FuSES oR WoRkING oN
51 xIV Troubleshooting A. Troubleshooting problems where no error code is displayed: CONDITION POSSIBLE CAUSES Display Blank, Fan off, LWCO lights off • No 120VAC Power at boiler. Check breaker and wiring between breaker panel and boiler Display Panel Blank, Fan running • Loose 120VAC connection wir...
Page 52 - Table 13.3: Soft Lockout Codes Displayed
52 B. Trouble shooting problems where a soft lockout code is displayed. When a soft lockout occurs, the boiler will shut down and the display will alternate between the number “9” and the letter “b” followed by a two digit service code. The boiler will automatically restart once the condition that c...
Page 53 - Table 13.4: Hard Lockout Codes Displayed
53 C. Trouble shooting problems where a hard lockout code is displayed. When a hard lockout occurs, the boiler will shut down and the display will flash the letter “E” followed by a two digit service code. Once the condition that caused the lockout is corrected, the boiler will need to be manually r...
Page 54 - SErViCE rECOrD; DATE
Page 55 - xV Parts
55 xV Parts All CHG Series Repair Parts may be obtained through your local Burnham Wholesale distributor. Should you require assistance in locating a Burnham distributor in your area, or have questions regarding the availability of Burnham products or repair parts, please contact Burnham Customer Se...
Page 68 - installation of side-wall vented gas appliances as follows:
6 Appendix A: Special Requirements For Side-Wall Vented Appliances In The Commonwealth of Massachusetts ImPOrTaNT The Commonwealth of Massachusetts requires compliance with regulation 248 CMR 4.00 and 5.00 for installation of side-wall vented gas appliances as follows: 1. For direct-vent appliances,...