Slant/Fin CHS-399 Installation And Operating Instructions Manual

Slant/Fin CHS-399 Installation And Operating Instructions Manual

High efficiency fire tube condensing gas boiler

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INSTALLATION AND OPERATING INSTRUCTIONS
T BLE OF CONTENTS
CONTENTS...............................................................PAGE
1.0 INTRODUCTION...............................................................3
2.0 SPECIFICATIONS ............................................................6
3.0 BOILER LOCATION..........................................................7
4.0 GENERAL VENTING ......................................................10
6.0 CONDENSATE DRAIN ...................................................27
7.0 INSTALLING GAS PIPING..............................................29
8.0 LIGHTING THE BOILER.................................................32
9.0 GAS VALVE AND BURNER SET-UP..............................34
11.0 FIELD WIRING ...............................................................53
12.0 WIRING SCHEMATICS ..................................................58
13.0 INSTALLATION CHECKLIST..........................................60
15.0 TROUBLESHOOTING ...................................................63
16.0 PARTS LIST....................................................................86
Heating Contractor
Address
Phone Number
HIGH EFFICIENCY FIRE TUBE
MODELS CHS-85 through CHS-399
CONDENSING GAS BOILER
READ ALL OF THE FOLLOWING WARNINGS AND STATEMENTS
BEFORE READING THE INSTALLATION INSTRUCTIONS
Danger Sign: Indicates a hazardous situation which,
if not avoided, will result in serious injury or death.
Warning Sign: Indicates a hazardous situation which,
if not avoided, could result in serious injury or death.
Caution Sign plus Safety Alert Symbol: Indicates a hazardous situa-
tion which, if not avoided, could result in minor or moderate injury.
Caution Sign without Safety Alert Symbol: Indicates a hazardous
situation which, if not avoided, could result in property damage.
Notice Sign: Indicates a hazardous situation which,
if not avoided, could result in property damage.
This Boiler must be installed by a licensed and trained Heating Technician
or the Warranty is Void. Failure to properly install thisunit may result in
property damage, serious injury to occupants, or possibly death.
Boiler Model Number
Boiler Serial Number
Installation Date
®
US
IMPORT NT
!
D NGER
!
W RNING
!
C UTION
C UTION
NOTICE
!
W RNING
©Slant/Fin Corp. 2018 • 618 • PUBLICATION CHS-40
This manual
must be left
with owner and
should be hung
on or adjacent
to the boiler
for reference.

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Summary of Contents for Slant/Fin CHS-399

  • Page 1: Table Of Contents

    14.0 ANNUAL MAINTENANCE AND INSPECTION ....61 property damage, serious injury to occupants, or possibly death. 15.0 TROUBLESHOOTING ...........63 16.0 PARTS LIST..............86 Heating Contractor Boiler Model Number Address Boiler Serial Number Phone Number Installation Date ©Slant/Fin Corp. 2018 • 618 • PUBLICATION CHS-40...
  • Page 2 │ Installation and Operation Instructions Slant Fin Corp. CHS Series Read Before Proceeding If you do not follow these instructions exactly, a fire or explosion may result causing property damage, serious injury or death. FOR YOUR SAFETY, READ BEFORE OPERATING_ A) This boiler does not have a pilot.
  • Page 3: Introduction

    1.0 INTRODUCTION General Installation Requirements The installation of your Slant/Fin CHS gas boiler must conform to the requirements of this manual, your local authority, and the National Fuel Gas Code ANSI Z223.1 and or CAN/CGA B149 Installation Codes. Where required by the Authority, the installation must conform to the standard for “Controls and Safety Devices for Automatically Fired Boilers ANSI/ASME CSD-1.
  • Page 4 Natural Gas to LP Conversion Instructions provided with kit number 81 8292 000. CHS-399’s, with a serial number of 84199 and lower are converted to Propane using kit number 81- 8125 000. CHS-399’s with a serial number greater than 95974, and all CHS-340’s, are converted to Propane using kit number 81- 8279 000.
  • Page 5 Installation and Operation Instructions │ Slant Fin Corp. CHS Series IN THE STATE OF MASSACHUSETTS ONLY (a) For all horizontally vented gas fueled equipment installed in every dwelling, building or structure used in whole or in part for residential purposes, including those owned and operated by the Commonwealth and where the side wall exhaust vent termination is less than seven (7) feet above finished grade in the area of the venting, including but not limited to decks and porches, the following requirements shall be satisfied: INSTALLATION OF CARBON MONOXIDE DETECTORS At the time of installation of the side wall...
  • Page 6: Specifications

    Ratings based on standard test procedures prescribed by the U.S. Department of Energy; certified by AHRI. Efficiency listed for models CHS-340 & CHS-399 represents Thermal Efficiency (AFUE is not applicable). The CHS requires a special venting system, use only vent materials and methods detailed in these instructions.
  • Page 7: Boiler Location

    Installation and Operation Instructions │ Slant Fin Corp. CHS Series 3.0 BOILER LOCATION In all cases, the CHS boiler must be installed indoors in a dry location where the ambient temperature must be maintained above freezing and below 100F [38C]. All boiler components must be protected from dripping, spraying water, or rain during operation and servicing.
  • Page 8 │ Installation and Operation Instructions Slant Fin Corp. CHS Series Table 3-1 Minimum Clearances for Installation and Service Dimensions - inches [mm] Model No. Clearances Front Sides Back Bottom Flue Pipe Minimum 24 [610] 12 [305] 4 [102] 16 [407] 1 [25] CHS 85-399 Recommended...
  • Page 9 Installation and Operation Instructions │ Slant Fin Corp. CHS Series Figure 3-2 Wall Mounting Instructions  Failure to follow instructions may While leaving the Upper bracket (A) intact, result in fire, serious injury, or death. remove the Wall-mount bracket (B) attached to the bottom-back of the appliance.
  • Page 10: General Venting

    │ Installation and Operation Instructions Slant Fin Corp. CHS Series 4.0 GENERAL VENTING The CHS boiler is certified as a “Category IV” boiler requiring a “Special Venting System” designed for pressurized venting. The Exhaust Vent must be piped to the outdoors, using the vent materials and rules outlined in this section.
  • Page 11 Installation and Operation Instructions │ Slant Fin Corp. CHS Series Direct Vent Installation When installed as a Direct Vent boiler the combustion air-inlet must also be piped directly to the outdoors using the methods described in this section and in accordance with the National Fuel Gas Code, ANSI Z223.1 (U.S.) or CSA B149.1 (Canada) and local requirements.
  • Page 12 │ Installation and Operation Instructions Slant Fin Corp. CHS Series Mandatory Pre-commissioning Procedure for Plastic Venting (PVC or CPVC) Do not apply power to the boiler prior to Step 4 in the Mandatory Pre-commissioning Procedure for Plastic Venting. 1) Working with the power turned off to the boiler, completely install the vent and air intake system, securely cementing joints together.
  • Page 13 Installation and Operation Instructions │ Slant Fin Corp. CHS Series Figure 4-2 Universal Exhaust-vent & Air-inlet Appliance Adapter (CHS-154 only) Gasket Identification and Pipe Insertion Depth Upper Gasket – 3.5” OD Seal 2.36” (CPVC/PVC) use with CPVC (PVC for Air-inlet) 3.46”...
  • Page 14 │ Installation and Operation Instructions Slant Fin Corp. CHS Series Figure 4-3(a) CHS 85-154 & 340-399 Figure 4-3(b) CHS 85-154 & 340-399 Near Boiler Venting (CPVC) Near Boiler Venting (PVC) Swing Joint to attain slope in Air-inlet Air-inlet horizontal runs Pipe * Pipe * Air Inlet...
  • Page 15 Installation and Operation Instructions │ Slant Fin Corp. CHS Series Figure 4-3(e) CHS 85-154 & 340-399 Figure 4-3(f) CHS 85-154 & 340-399 Near Boiler Venting (Stainless Steel) Near Boiler Venting (Polypropylene) PPS Elbow w/ offset angle to SS Air-inlet Pipe PPS Air-inlet Pipe* account for slope Swing Joint...
  • Page 16 │ Installation and Operation Instructions Slant Fin Corp. CHS Series Vent/Air-inlet Pipe Material Table 4-4 Acceptable Vent and Air-Inlet Pipe Material Venting System Standards 2, 3 Items Materials Canada United States PVC - DWV ANSI/ASTM D2265 Vent Air-Inlet materials installed on gas PVC Schedule 40 ANSI/ASTM D1785 Vent Piping...
  • Page 17 Kits certified with the CHS boiler are listed in Table 4-7 and available from the manufacturers listed in Table 4-6. Kits with a Slant/Fin part number listed in Table 4-7, are available directly from Slant/Fin. Table 4-6 Optional Termination Kit OEMs...
  • Page 18 │ Installation and Operation Instructions Slant Fin Corp. CHS Series Table 4-6 Optional Vent Termination Kits Vent Option Vent Vent Material Description Supplier P/N Figure Size Compatibility Roof Wall 2” 196984   3” IPEX Low Profile (Wall) 196985 (S/F 81 8172 000) 4-4(b), 4-6(c) PVC/CPVC 4”...
  • Page 19 Installation and Operation Instructions │ Slant Fin Corp. CHS Series Sidewall Venting Options – Direct Vent Installation Figure 4-4(a) Figure 4-4(b) Two-pipe Termination (Sidewall) IPEX Low Profile Termination (Sidewall) Location of exhaust and air-inlet Location of exhaust and air-inlet connections vary between connections vary between models, see Figure 4-2.
  • Page 20 │ Installation and Operation Instructions Slant Fin Corp. CHS Series Roof Venting Options – Direct Vent Installation Figure 4-5(a) Figure 4-5(b) Two-pipe Termination (Roof) IPEX Concentric Termination (Roof) Location of exhaust and air-inlet Location of exhaust and air-inlet connections vary between connections vary between models, see Figure 4-2.
  • Page 21 Installation and Operation Instructions │ Slant Fin Corp. CHS Series Sidewall Termination Details – Direct Vent Installation Figure 4-6(a) Figure 4-6(b) Two-Pipe Termination (Sidewall) IPEX Concentric Termination (Sidewall) Horizontal 4-12” or greater Refer to documentation included with termination kit for than 36”...
  • Page 22 │ Installation and Operation Instructions Slant Fin Corp. CHS Series  Roof Termination Details – Direct Vent Installation Figure 4-7(a) Figure 4-7(b) Two-Pipe Termination (Roof) IPEX Concentric Termination (Roof) Exhaust Refer to documentation included with termination kit for Vent Screen complete installation instructions.
  • Page 23 Combustion air containing chemicals such as chloride, fluoride, bromine or iodine or dust and debris will cause corrosion damage of the heat exchanger voiding your Slant/Fin warranty. Refer to Table 4-1 for a list of corrosive products and contaminants sources to avoid.
  • Page 24 │ Installation and Operation Instructions Slant Fin Corp. CHS Series Figure 4-8 Venting Below Grade For installations that exit the wall below grade: Exhaust 1. Excavate site to a point below where the pipes are to exit as shown. 2. Ensure the wall is fully sealed where the pipes penetrate.
  • Page 25: Vent/Air-Inlet Termination Clearances

    Installation and Operation Instructions │ Slant Fin Corp. CHS Series 5.0 VENT/AIR-INLET TERMINATION CLEARANCES The quick reference table below is to be read in conjunction with the numbered notes as indicated, Figures 5-1 and 5-2, and the Venting Rules and Guidelines in Section 4.0. The instructions detailed in this section are a combination of CHS specific and National Gas Code restrictions.
  • Page 26 │ Installation and Operation Instructions Slant Fin Corp. CHS Series Figure 5-1 Termination Clearance Quick Reference Diagram (See Table 5-1) Illustrations of Termination Clearances Figure 5-2 Sidewall Termination (See Table 5-1) Clearances “F” and “G” Canada – Minimum 3 ft [915 mm] The US –...
  • Page 27: Condensate Drain

    Installation and Operation Instructions │ Slant Fin Corp. CHS Series 6.0 CONDENSATE DRAIN This unit produces liquid condensate in the heat exchanger and venting system as a product of combustion. Steps must be taken to ensure condensate does not collect in the venting system; therefore, all exhaust piping must slope back to the boiler a minimum 1/4”...
  • Page 28 │ Installation and Operation Instructions Slant Fin Corp. CHS Series Figure 6-1 Condensate Drain Piping Inlet Gasket Inlet Condensate Trap Outlet   Cleanout Cap Inlet Gasket Boiler Condensate Drain Outlet Gasket Ball-float Outlet Retaining Nut Corrugated Outlet Tube  Inlet Retaining Nut firmly tightened ...
  • Page 29: Installing Gas Piping

    Follow the Natural Gas to LP Conversion Instructions provided with kit number 81 8292 000. CHS-399’s, with a serial number of 84199 and lower are converted to Propane using kit number 81- 8125 000. CHS-399’s with a serial number greater than 95974, and all CHS-340’s, are converted to Propane using kit number 81- 8279 000.
  • Page 30 Ensure that:  The gas line connection to the boiler does not apply any weight to the gas valve. Slant/Fin recommends using approved flexible gas piping (if acceptable by local codes) to connect the boiler to the gas supply (See Figure 7-1 for details).
  • Page 31 Installation and Operation Instructions │ Slant Fin Corp. CHS Series Figure 7-1 Gas Line Connection (Typical) Manual Gas Shutoff Valve Should overheating occur or the gas supply fail to shutoff, close the Manual Gas Shutoff Valve to the boiler. Union Flexible Gas Line Piping Recommended to eliminate strain on the boiler gas...
  • Page 32: Lighting The Boiler

    │ Installation and Operation Instructions Slant Fin Corp. CHS Series 8.0 LIGHTING THE BOILER Before Start-up refer to Mandatory Pre-commissioning Procedure for Plastic Venting in Section 4.0. Failure to follow these instructions can result in explosions, injury or death. Prior to turning the gas supply on and lighting the boiler, ensure all aspects of the installation are complete and in conformance with the instructions provided in this manual, including the Vent/Air-Inlet, Condensate Drain, and System Water Piping.
  • Page 33 EXTREME ELECTRICAL SHOCK possibly causing serious injury or death. If the unit fails to light consistently and smoothly, contact Slant/Fin for technical assistance at (516) 484-2600. Never allow the boiler to operate if the ignition or operation of the burner is rough or erratic.
  • Page 34: Gas Valve And Burner Set-Up

    │ Installation and Operation Instructions Slant Fin Corp. CHS Series 9.0 GAS VALVE AND BURNER SET-UP Set-up of the CHS gas valve must be performed by a licensed Gas Technician. Failure to perform the set-up correctly may result in incorrect operation, component failure, property damage, serious injury or death.
  • Page 35 Screw, to be within the limits listed in Table 9-1. 4. Operate the unit at the minimum modulation rate (Table 9-2). Ensure the combustion remains smooth and and CO remain within the limits (Table 9-1). If not, do not adjust further, contact Slant/Fin for assistance.
  • Page 36 │ Installation and Operation Instructions Slant Fin Corp. CHS Series Flue Gas Analysis and Adjustment Each CHS boiler is factory set to operate with Natural Gas, for boilers field converted to operate with Propane Gas, a flue gas analysis and adjustment is mandatory. See Table 7-1 and Propane conversion instructions. Failure to perform the flue gas analysis and adjustment detailed in this section may result in erratic and unreliable burner operation, leading to reduced efficiency, increased fuel consumption, reduced component life, heat exchanger combustion deposits, and general...
  • Page 37 Installation and Operation Instructions │ Slant Fin Corp. CHS Series Figure 9-2 CHS-154 & CHS-201 Gas Valve Adjustment DO NOT Adjust Gas Valve Throttle / Input Line Pressure Adjustment Screw Test Port Figure 9-3 CHS 285-399 Gas Valve Adjustment (CHS 340-399 Illustrated) Throttle / Input Remove access cover, Adjustment Screw...
  • Page 38: Boiler And Heating System Piping

    Failure to follow the instructions provided in this section will void the Slant/Fin warranty and may result in property damage, fire, serious injury or death.
  • Page 39 Installation and Operation Instructions │ Slant Fin Corp. CHS Series Dirt Removal – A dirt removal device should be installed in all systems. In older systems containing cast iron radiators/baseboard or large amount black iron or steel pipe a magnetic dirt separator must be installed. Glycol, Snow Melt, and Oxygen Permeable Piping –...
  • Page 40 WATER” LED should illuminate. Generate a burner demand; the burner should not fire and “Lockout 67 ILK OFF” should appear on the screen. Contact Slant/Fin for assistance if this does not happen. 2. Fill the boiler with water; the “LOW WATER” LED should turn off. Clear the Lockout from the display board;...
  • Page 41 Installation and Operation Instructions │ Slant Fin Corp. CHS Series Near Boiler Piping (CHS 85-154) Figure 10-1(a) Figure 10-1(b) Supply/Return Bottom (CHS 85-154) Supply/Return Top (CHS 85-154) Auto Air-Vent Auto Air-Vent (factory Supplied) (factory Supplied) Inlet Pressure Relief Valve Pressure Relief Valve (factory Supplied) (factory Supplied) Press.
  • Page 42 │ Installation and Operation Instructions Slant Fin Corp. CHS Series Near Boiler Piping (CHS 201-285) Figure 10-2(a) Figure 10-2(b) Supply/Return Bottom (CHS 201-285) Supply/Return Top (CHS 201-285) Auto Air-Vent (factory Supplied) Auto Air-Vent Inlet (factory Supplied) Pressure Relief Valve (factory Supplied) Pressure Relief Valve (factory Supplied) Outlet...
  • Page 43 Installation and Operation Instructions │ Slant Fin Corp. CHS Series Near Boiler Piping (CHS 340-399) Figure 10-3(a) Figure 10-3(b) Supply/Return Bottom (CHS 340-399) Supply/Return Top (CHS 340-399) Auto Air-Vent Auto Air-Vent (factory Supplied) Inlet (factory Supplied) Pressure Relief Valve (factory Supplied) Pressure Relief Valve (factory Supplied) Outlet...
  • Page 44 (See Table 10-2 for minimum flow rate requirements). To ensure the minimum flow rate is attained, Slant/Fin strongly recommends installing the boiler in a “Primary/Secondary” plumbing configuration utilizing “Closely Spaced Tees” or a “Low Loss Header” to de-couple the Boiler-Primary loop from the System-Secondary loop(s).
  • Page 45 Installation and Operation Instructions │ Slant Fin Corp. CHS Series Table 10-4 Circulator and Pipe Size Requirements Minimum Primary Loop Pump Size Temp. Boiler Flow Boiler Head Minimum Model Rise (ºF) Rate (GPM) Loss (ft) Pipe Size B&G Grundfos Taco Armstrong 1”...
  • Page 46 │ Installation and Operation Instructions Slant Fin Corp. CHS Series Figure 10-4(a) CHS 85-110 Head Loss Curve Flow Rate (US gpm) Figure 10-4(b) CHS 154-285 Head Loss Curve Flow Rate (US gpm) Figure 10-4(c) CHS 340-399 Head Loss Curve Flow Rate (US gpm)
  • Page 47 Installation and Operation Instructions │ Slant Fin Corp. CHS Series Air Removal – The boiler and system plumbing layout must be configured to promote the removal of air from the water. Air vents and bleeders must be strategically placed throughout the system to aid in purging the air from the system during commissioning of the boiler.
  • Page 48 │ Installation and Operation Instructions Slant Fin Corp. CHS Series Figure 10-5 Primary/Secondary Plumbing (Single System Circulator Configuration) Water connection locations will vary between boiler models; refer to Figures 10-1 to 10-3.
  • Page 49 Installation and Operation Instructions │ Slant Fin Corp. CHS Series Figure 10-6 Primary/Secondary Plumbing (Multiple System Circulator Configuration) Water connection locations will vary between boiler models; refer to Figures 10-1 to 10-3.
  • Page 50 C (i.e. pump output C is limited to 3 Amps or 1/6hp). Table 10-5 Minimum Pipe Sizes for Multiple Boiler Applications CHS-85 CHS-110 CHS-155 CHS-175 CHS-201 CHS-285 CHS-340 CHS-399 # of Units Pipe Size 2” 2” 2” 1-1/4” 1-1/2”...
  • Page 51 Installation and Operation Instructions │ Slant Fin Corp. CHS Series Figure 10-7 Multiple Boiler Lead-Lag Plumbing Configuration (Small DHW Requirements)
  • Page 52 │ Installation and Operation Instructions Slant Fin Corp. CHS Series Figure 10-8 Multiple Boiler Lead-Lag Plumbing Configuration (Large DHW Requirements)
  • Page 53: Field Wiring

    Installation and Operation Instructions │ Slant Fin Corp. CHS Series 11.0 FIELD WIRING All wiring must be in accordance with the Canadian Electrical code, CSA C22.2 and any applicable local codes. Ensure that the wiring complies with this manual. The boiler must be electrically grounded in accordance with the National Electrical Code ANSI/NFPA 70, local codes, and/or the Canadian Electrical Code CSA C22.1.
  • Page 54 │ Installation and Operation Instructions Slant Fin Corp. CHS Series Figure 11-1 Line Voltage Field Wiring Table 11-1 Line Voltage Field Connections Connection Location Description Location for connecting line voltage of the power supply. Note; most installation codes (120VAC) require the installation of a service switch to break line voltage to the appliance. PUMP A 120VAC output to the DHW circulator;...
  • Page 55 Sensor Common – Common port for field inputs SYSTEM, OUTDOOR and DHW. System Water Temperature – An optional strap-on System Sensor is available from Slant/Fin (P/N 81 8146 000). When connected to terminals 6 and 7, the control will SYSTEM indicate a “CH”...
  • Page 56 │ Installation and Operation Instructions Slant Fin Corp. CHS Series Low Voltage Terminals – “R” terminals 2 and 3 of the 24VAC I/O barrier has 24VAC potential from the internal transformer. Do not connect power from this terminal to any other terminal other than terminals 4, 5 and 6 (LIM, CH1 and CH2 (LL)).
  • Page 57 Installation and Operation Instructions │ Slant Fin Corp. CHS Series Figure 11-3 DHW Input Contacts (Multiple Boilers)
  • Page 58: Wiring Schematics

    │ Installation and Operation Instructions Slant Fin Corp. CHS Series 12.0 WIRING SCHEMATICS Figure 12-1 CHS Connection Diagram...
  • Page 59 Installation and Operation Instructions │ Slant Fin Corp. CHS Series Figure 12-2 CHS Ladder/Logic Diagram...
  • Page 60: Installation Checklist

    │ Installation and Operation Instructions Slant Fin Corp. CHS Series 13.0 INSTALLATION CHECKLIST Installation  1. If operating on Propane Gas, convert boiler using appropriate Natural to LP Conversion Instructions; see Table 7-1.  2. Locate the boiler in accordance with Section 3.0 of this manual. ...
  • Page 61: Annual Maintenance And Inspection

    Combustion Chamber Cleaning Procedure Slant/Fin recommends having the combustion chamber cleaned after the first year of operation, with subsequent cleanings scheduled based on the condition of the combustion chamber at the time. Units operating with LP Gas or in an industrial environment may require more frequent cleanings.
  • Page 62 │ Installation and Operation Instructions Slant Fin Corp. CHS Series Refractory Ceramic Fibers (RFC) Personal Protective Equipment Recommended - Read the following warnings and handling instructions carefully before commencing any service work in the combustion chamber. The insulating material on the inside of the burner plate contains Refractory Ceramic Fibers and should not be handled without personal protective equipment.
  • Page 63: Troubleshooting

    Installation and Operation Instructions │ Slant Fin Corp. CHS Series 15.0 TROUBLESHOOTING Observe the following precautions when servicing the boiler. Failure to comply with these may result in fire, property damage, serious injury or death. Servicing the Boiler  Disconnect or shutoff all energy sources to the boiler: 120VAC power, water and gas. ...
  • Page 64 │ Installation and Operation Instructions Slant Fin Corp. CHS Series Figure 15-1 CHS Control Panel Figure 14-1 Tft Model Fuse “C” ATO 2A 32V Auto Blade Type Fuses “A” and “B” 3AG Control Panel Cover 7A 250 Fast-Acting Control Panel Fuses The CHS boiler is equipped with three (3) fuses.
  • Page 65 Installation and Operation Instructions │ Slant Fin Corp. CHS Series Loss of Communication If the Display is not blank, but is displaying “Boiler Search, Modbus address: 1,2,3…” indefinitely, ensure the Molex connector, located behind the display at the top, is connected and that the wires are fully inserted (see Figures 15-2 and 15-3).
  • Page 66 │ Installation and Operation Instructions Slant Fin Corp. CHS Series Display Diagnostics – The CHS controller and user interface provide detailed operational and diagnostic information for aid in troubleshooting. When power is applied to the boiler the initial screen displayed is the Home page.
  • Page 67 Installation and Operation Instructions │ Slant Fin Corp. CHS Series PROBLEM POSSIBLE CAUSE CORRECTIVE ACTION Hold 66 – Interrupted air switch ON Hold 67 – ILK OFF Low Water Condition Check operation of internal LWCO. Indication that an external limit (wired to “LIM”) External Limit Tripped is open.
  • Page 68 │ Installation and Operation Instructions Slant Fin Corp. CHS Series PROBLEM POSSIBLE CAUSE CORRECTIVE ACTION Hold 95 – Stack sensor fault Sensor disconnected Check sensor connection located at the bottom of the flue pipe inside the boiler cabinet. Check connection on control board. Faulty sensor Check resistance of sensor and compare to thermistor resistance chart, see Table 15-2.
  • Page 69 Installation and Operation Instructions │ Slant Fin Corp. CHS Series PROBLEM POSSIBLE CAUSE CORRECTIVE ACTION See “Blower operating at high speed while burner Blower is always on is off” below. Alert 128 - Modulation rate Incorrect Sola controller. Replace control with correct model. was limited due to IAS open Hold 137 –...
  • Page 70 │ Installation and Operation Instructions Slant Fin Corp. CHS Series PROBLEM POSSIBLE CAUSE CORRECTIVE ACTION  Verify that the 5-position Molex connector on Blower operating at high Blower signal cable disconnected speed while burner is off the wiring harness is securely connected to its mating connector on the blower.
  • Page 71 Installation and Operation Instructions │ Slant Fin Corp. CHS Series Table 15-3 Hold and Lockout Codes Code Description Note Internal fault: Flame bias out of range Hold Internal fault: Invalid Burner control state Lockout Internal fault: Invalid Burner control state flag Lockout Internal fault: Safety relay drive cap short Hold...
  • Page 72 │ Installation and Operation Instructions Slant Fin Corp. CHS Series Table 15-3 Hold and Lockout Codes Code Description Note Internal fault: Mux pin shorted Lockout Internal fault: HFS shorted to LFS Lockout Anti short cycle Hold Fan speed not proved Hold LCI OFF Hold...
  • Page 73 Installation and Operation Instructions │ Slant Fin Corp. CHS Series Table 15-3 Hold and Lockout Codes Code Description Note Wait for OK to Run Disabled Flap valve condensate fault Disabled Controller interaction system fault Hold Controller interaction communications fault Hold Flap valve backflow fault Disabled Flap valve fault...
  • Page 74 │ Installation and Operation Instructions Slant Fin Corp. CHS Series Table 15-3 Hold and Lockout Codes Code Description Note Main relay feedback incorrect Lockout Pilot relay feedback incorrect Lockout Safety relay feedback incorrect Lockout Safety relay open Lockout Main relay ON at safe start check Lockout Pilot relay ON at safe start check Lockout...
  • Page 75 Installation and Operation Instructions │ Slant Fin Corp. CHS Series Table 15-3 Hold and Lockout Codes Code Description Note Unconfigured Outlet high limit set point setting Lockout Unconfigured Stack limit set point setting Lockout Invalid DHW demand source setting Lockout Invalid Flame threshold setting Lockout Invalid Outlet high limit set point setting...
  • Page 76 │ Installation and Operation Instructions Slant Fin Corp. CHS Series Table 15-4 Alert Codes Code Description None (No alert) Alert PCB was restored from factory defaults Safety configuration parameters were restored from factory defaults Configuration parameters were restored from factory defaults Invalid Factory Invisibility PCB was detected Invalid Factory Range PCB was detected Invalid range PCB record has been dropped...
  • Page 77 Installation and Operation Instructions │ Slant Fin Corp. CHS Series Table 15-4 Alert Codes Code Description Maximum cycle count was reached Maximum hours count was reached Illegal Modbus write was attempted Modbus write attempt was rejected (NOT ALLOWED) Illegal Modbus read was attempted Safety processor brown-out reset occurred Application processor watchdog reset occurred Application processor brown-out reset occurred...
  • Page 78 │ Installation and Operation Instructions Slant Fin Corp. CHS Series Table 15-4 Alert Codes Code Description CH max modulation rate was > absolute max rate CH modulation range (max minus min) was too small (< 4% or 40 RPM) DHW max modulation rate was invalid, % vs. RPM DHW max modulation rate was >...
  • Page 79 Installation and Operation Instructions │ Slant Fin Corp. CHS Series Table 15-4 Alert Codes Code Description DHW demand source was invalid DHW P-gain was invalid DHW I-gain was invalid DHW D-gain was invalid DHW OFF hysteresis was invalid DHW ON hysteresis was invalid DHW hysteresis step time was invalid DHW sensor type was invalid Inlet sensor type was invalid for DHW...
  • Page 80 │ Installation and Operation Instructions Slant Fin Corp. CHS Series Table 15-4 Alert Codes Code Description Lead Lag header temperature was invalid Lead Lag was suspended due to no enabled Program Module installed Lead Lag slave session has timed out Too many Lead Lag slaves were detected Lead Lag slave was discovered Incompatible Lead Lag slave was discovered...
  • Page 81 Installation and Operation Instructions │ Slant Fin Corp. CHS Series Table 15-4 Alert Codes Code Description CH ODR min water temperature was invalid RESERVED DHW set point was invalid DHW time of day set point was invalid DHW storage setpoint was invalid STAT may not be a DHW demand source when Remote Stat is enabled No DHW anticondensation setpoint was configured No CH anticondensation setpoint was configured...
  • Page 82 │ Installation and Operation Instructions Slant Fin Corp. CHS Series Table 15-4 Alert Codes Code Description Abnormal Recycle: ILK off during Main Flame Establishing Period Abnormal Recycle: ILK off during Ignition period Run was terminated due to ILK was off Run was terminated due to interrupted air flow switch was off Stuck reset switch Run was terminated due to fan failure...
  • Page 83 Installation and Operation Instructions │ Slant Fin Corp. CHS Series Table 15-4 Alert Codes Code Description Abnormal Recycle: fault DHW sensor Abnormal Recycle: DHW high limit Abnormal Recycle: fault inlet sensor Abnormal Recycle: Check Parameters Failed Internal error: No factory parameters were detected in control Internal error: PID iteration frequency was invalid Internal error: Demand-Rate interval time was invalid Internal error: Factory calibration parameter for modulation was invalid...
  • Page 84 │ Installation and Operation Instructions Slant Fin Corp. CHS Series Table 15-4 Alert Codes Code Description Internal error: EEPROM write was attempted before EEPROM was initialized Internal error: EEPROM cycle count address was invalid Internal error: EEPROM days count address was invalid Internal error: EEPROM hours count address was invalid Internal error: Lockout record EEPROM index was invalid Internal error: Request to write PM status was invalid...
  • Page 85 Installation and Operation Instructions │ Slant Fin Corp. CHS Series Table 15-4 Alert Codes Code Description Parameter PCB was switched to backup Range PCB was switched to backup Lead Lag modulation sensor was not valid with setpoint source Lead Lag modulation sensor was not valid with local setpoint source Lead Lag modulation sensor was not valid with local modulation rate source Disagreement on number of interacting controls...
  • Page 86: Parts List

    Building Owners - Replacement parts are available from your stocking wholesaler. Contact your local Installer or Wholesaler for assistance with parts. Wholesalers - Contact Slant/Fin inside sales department when ordering replacement parts at 1-516-484-2600. Installers - Contact Slant/Fin tech support department if technical assistance required at 1-516-484-2600.
  • Page 87 Installation and Operation Instructions │ Slant Fin Corp. CHS Series Figure 16-1(b) CHS-154 & CHS-201 Heat Engine and Gas Train (CHS-154 Illustrated)
  • Page 88 │ Installation and Operation Instructions Slant Fin Corp. CHS Series Figure 16-1(c) CHS 285-399 Heat Engine and Gas Train (CHS 340-399 Illustrated)
  • Page 89 Installation and Operation Instructions │ Slant Fin Corp. CHS Series Figure 16-1(d) CHS Cabinet, Vent and Air-inlet Parts (CHS 85-110 Illustrated) Figure 16-1(3) CHS Control Panel...
  • Page 90 │ Installation and Operation Instructions Slant Fin Corp. CHS Series Figure 16-1(f) CHS Installation Kit Natural to LP Conversion Kit Table 16-1 Parts List: Item Model Part No. Description CHS 85-110 81 8010 000 Premix Burner CHS 85-110 CHS 154, CHS 201 81 8240 000 Premix Burner CHS 154 CHS 155, CHS 175, CHS 200, CHS...
  • Page 91 Installation and Operation Instructions │ Slant Fin Corp. CHS Series Item Model Part No. Description CHS 154 81 8244 000 NG-Venturi Insert CHS 154 81 8245 000 LP-Venturi Insert CHS 201 81 8296 000 NG-Venturi Insert CHS 201 81 8294 000 LP-Venturi Insert CHS 85 81 8028 000...
  • Page 92 │ Installation and Operation Instructions Slant Fin Corp. CHS Series Item Model Part No. Description CHS 201 81 8302 000 Gas Valve Rectifier Box Kit CHS 300-399 (pre s/n 84200) 81 8159 000 Gas Valve Harness CHS 300-399 CHS 285, CHS 340-399 (post s/n 81 8254 000 Gas Valve Harness CHS 340-399 95974)
  • Page 93 Installation and Operation Instructions │ Slant Fin Corp. CHS Series Item Model Part No. Description Flue Outlet Adapter, SS, 3” CHS 155-250 CHS 155-285 81 8082 000 Flue Outlet Adapter, SS, 4” CHS 300-399 CHS 300-399 81 8083 000 CHS 85-399 81 8111 000 Ignition Coil Snap Bushing, 1”...
  • Page 94 │ Installation and Operation Instructions Slant Fin Corp. CHS Series Item Model Part No. Description CHS 155, CHS 175, CHS 200, CHS Top Panel CHS 155-250 81 8139 000 CHS 285 81 8312 000 Top Panel CHS 285 CHS 300-399 (pre s/n 84200) 81 8140 000 Top Panel CHS 300-399 CHS 340-399 (post s/n 95974)
  • Page 95 Installation and Operation Instructions │ Slant Fin Corp. CHS Series Item Model Part No. Description CHS 300-399 81 8174 000 4" Low Profile Vent Terminal CHS 300-399 CHS 300-399 81 8175 000 4" Concentric Vent Terminal CHS 300-399 CHS 85-399 81 8176 000 DHW Tank Sensor CHS 85-399...
  • Page 96 ©Slant/Fin Corp. 2018 • 618 • PUBLICATION CHS-40 SLANT/FIN CORPORATION, Greenvale, N.Y. 11548 • Phone: (516) 484-2600 FAX: (516) 484-5921 • Canada: Slant/Fin , Mississauga, Ontario LTD/LTEE www.slantfin.com...

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