Granby Comet 145 Installation, Operation And Maintenance Manual
Comet 145
OIL FIRED HOT WATER BOILER
Installation, Operation and
Maintenance Manual
INSTALLATIONS MUST MEET ALL LOCAL AND FEDERAL
CODES THAT MAY DIFFER FROM THIS MANUAL
Please read this complete manual before beginning installation. These instructions must be kept with
the boiler for future reference.
CERTIFIED TO: CAN/CSA Std. B140.0 & Std. B140.7
CONFORMS TO: UL 726
GRANBY FURNACES INC
PO Box 637
12118 Hwy 209
Parrsboro Nova Scotia Canada
B0M 1S0
www.GranbyIndustries.com
COMET 145 – INSTALLATION/OPERATION MANUAL
TABLE OF CONTENTS
1.0 Homeowner Information 3
1.1 Introduction 3
1.2 Regular Maintenance 3
1.3 Warnings 3
1.4 Direct Vent 3
1.5 Shutting Boiler Down 3
1.6 Restarting Boiler 4
2.0 Installation 4
2.1 Important 4
2.2 Caution 4
2.3 General Instructions 4
2.4 Placement & Venting 4
2.5 Boiler Configuration 5
2.6 Assemble Boiler 5
2.7 Domestic Hot Water 6
2.8 Assemble & Install Burner 6
2.9 Set Burner for Efficient Operation 6
3.0 Oil Tanks & Piping 7
4.0 Boiler Return Water Temperature 7
5.0 Cabinet Assembly 7
6.0 Cleaning Instructions 8
7.0 Burner Specifications 9
8.0 Blocked Vent Switch 9
9.0 General Specifications 10
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10.0 Appendix
Figure – 1 Burner Insertion
Figure – 2 Oil Tank & Piping
Figure – 3 Wiring Diagram
Figure – 4 Installation
Figure – 5 Cleaning
Figure – 6 Cabinet Assembly
Figure – 7 Dimensions
Figure – 8 Exploded Parts
Table – 1 Parts List
Keep this manual in a safe place for future reference.
Follow manual carefully for the correct way to install and operate this appliance.
Do not operate this appliance until operating instructions have been read and fully understood.
SAVE THESE INSTRUCTIONS
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COMET 145 – INSTALLATION/OPERATION MANUAL
1.0 HOMEOWNER INFORMATION
1.1 INTRODUCTION
Please read and understand this manual before installing, operating or maintaining the
boiler. To ensure you have a clear understanding of the operating procedures of the
appliance please take the time to read section 1.0 HOMEOWNER INFORMATION.
1.2 REGULAR MAINTENANCE
Have a qualified technician check complete boiler operation at least once a year.
1.3 WARNINGS
DISCONNECT POWER SUPPLY AND SHUT OFF OIL BEFORE WORKING ON BOILER.
DO NOT ATTEMPT TO START BURNER WHEN EXCESS OIL HAS ACCUMULATED.
WHEN UNIT IS FULL OF VAPOUR OR COMBUSTION ZONE IS VERY HOT.
NEVER BURN GARBAGE OR PAPER IN THE UNIT, AND NEVER STORE COMBUSTIBLE
MATERIAL AROUND IT.
DO NOT USE GASOLINE, CRANKCASE DRAININGS OR ANY OIL CONTAINING
GASOLINE.
1.4 DIRECT VENT
It is the responsibility of the homeowner to ensure that the area around the Direct Vent
terminal and the air intake is free of snow, ice and debris. The vent terminal should be
checked during heavy snowstorms to ensure proper operation.
1.5 SHUTTING BOILER DOWN
POWER OFF Turn off main power.
FUEL OFF Shut off manual fuel supply valve.
Always keep the manual fuel supply valve shut off if the burner is shut down for extended
period of time.
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1.6 RESTARTING BOILER
Follow this procedure before restarting a unit that has been shut down for an extended period.
INSPECTION Have the boiler/system serviced and inspected by a qualified technician.
FUEL Turn on fuel supply and check that there are no leaks.
POWER Turn on power switch and check that the boiler starts and operates as usual.
OPERATION If the boiler/system fails or operates in an unusual manner call your service
technician. If the burner fails to operate at any time, call a qualified burner
technician.
2.0 INSTALLATION
2.1 IMPORTANT
Read owner’s manual before installing boiler or lighting burner. Consult local authorities if in
doubt about local fire safety regulations. Improper installation will result in voiding of warranty.
2.2 CAUTION
INSTALLATION MUST COMPLY WITH REGULATIONS OF AUTHORITIES HAVING
JURISDICTION. DO NOT START THE BURNER UNTIL ALL FITTINGS, COVERS AND
DOORS ARE IN PLACE. DO NOT TAMPER WITH THE BOILER OR CONTROLS.
2.3 GENERAL INSTRUCTIONS
Open all boxes, except cabinet or cabinet box. Check contents against the packing slip. In
case of shortages or damage, notify the transportation company immediately.
2.4 PLACEMENT & VENTING
Installations should conform to CSA Standard B139 or NFPA31 the Installation Code for Oilfired Equipment.
FLOOR COMBUSTIBLE or NON-COMBUSTIBLE - Support boiler frame
above damp floor using a Granby Appliance Stand if required. 3/8”
bolts may be used for leveling (not supplied). Floor must be strong
enough to support the weight of the boiler.
CHIMNEY & DRAFT Chimney/vent system must satisfy CSA B139, Installation Code. THE
BOILER MUST HAVE SUFFICIENT DRAFT AT ALL TIMES TO
ASSURE SAFE AND PROPER OPERATION. Not applicable for
Direct Vent.
TYPE “L” VENT Approved for Type “L” vent system. Maximum flue gas temperature of
575°F.
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COMET 145 – INSTALLATION/OPERATION MANUAL
THROUGH-THE- Approved for use with the Granby Direct Vent and KPV -SS1C.
WALL VENTING
COMBUSTION & The B139 Installation Code requ ires the installer to provide sufficient
VENTILATION AIR outside air for ventilation. Always provide sufficient air to ensure safe
operation. See B139 for make up air requirements (Non-Direct Vent
only). Important for KPV-SS1C through-the-wall power vent system.
2.5 BOILER CONFIGURATION
L OR R BREECH To change, remove breech casing and breech. Rotate and replace.
Ensure gaskets are tight. See Figure – 4.
L OR R RETURN 1 1/4” x 1 1/4” return/drain Tee supplied in installation kit. May be
installed to give L or R return. See Figure – 4.
LEVELING BOLTS Install in base frame as required. This is an optional feature.
2.6 ASSEMBLE BOILER
CABINET See section 5.0 CABINET ASSEMBLY or Figure – 6.
OIL BURNER See section 2.8 ASSEMBLE & INSTALL BURNER.
AQUASTAT Honeywell L8124L1029 and White Rogers 8B43A-601 or certified
equivalent. For remote bulb, use Honeywell L8151A1052. The Triple
Aquastat can be located on the tankless coil or on either side of the
boiler. The openings not used for the triple aquastat must be sealed
with the pipe plugs provided.
CIRCULATOR As required.
DRAIN 1/2” IPS installs on return Tee.
TRIDICATOR Combination temperature and pressure indicator.
RELIEF VALVE Watts 335, 30 psig, ASME, 3/4” or equivalent.
BLOW DOWN Install 3/4” blow down termination within 6” of floor on relief valve
outlet. Blow down must contain no fittings that could prevent proper
operation. Must terminate in a SAFE PLACE.
EXPANSION TANK Diaphragm or cylinder as required.
FEED WATER Watts 1156 or equivalent, 1/2” IPS.
VALVE
DRAFT CONTROL 5” CSA approved or equivalent. Strong draft may require a larger
control. Attach the balanced draft control to the smoke/vent pipe as
shown in control instruction sheet. Not applicable for Direct Vent.
WIRING HARNESS Supplied with boiler installation kit, see Figure – 3.
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COMET 145 – INSTALLATION/OPERATION MANUAL
VENT PIPE 5” Keep short with minimum of fittings. For chimney systems allow 1/4”
per foot rise to assist gas flow. See B139 Code and section 2.4
PLACEMENT & VENTING. Must not pass through ceiling.
PIPING 1 1/4” pipe for supply and return unless otherwise specified. Select L
or R as required. See Figure - 4.
2.7 DOMESTIC HOT WATER COIL
Use a K25m coil only. For best performance always connect cold water supply to RHS fitting
on coil.
ACTUAL FLOW & TEMPERATURE RATES MAY VARY FROM COIL SPECIFICATION
2.8 ASSEMBLE & INSTALL BURNER
ASSEMBLE Follow assembly and mounting instructions supplied by the burner
manufacturer.
END CONE See burner insertion settings in section 7.0 BURNER
SPECIFICATIONS or Figure – 1.
SELECT NOZZLE Select oil input, nozzle required and burner configuration to correspond
with boiler settings table shown on operating decal or section 7.0
BURNER SPECIFICATIONS.
INSTALL NOZZLE Install selected nozzle and make sure it is tight in the nozzle adapter.
ELECTRODES See burner manufacturer’s instructions.
INSERTION See operating decal or Figure – 1.
MOUNT BURNER Mount the burner and gasket on the boiler, inserting the burner head
through the opening in the front of the boiler. Tighten top nut first to
ensure burner tips slightly towards chamber.
WIRING See Figure – 3 or wiring decal.
2.9 SET BURNER FOR EFFICIENT OPERATION
END CONE See settings in section 7.0 BURNER SPECIFICATIONS.
BURNER AIR See settings in section 7.0 BURNER SPECIFICATIONS.
PUMP PRESSURE See settings in section 7.0 BURNER SPECIFICATIONS.
SAMPLING HOLE In vent pipe between boiler breech and draft control punch or drill a
1/4” diameter hole. Not applicable for Direct Vent.
DRAFT 0.04” WC Using an accurate draft meter; adjust the draft control to obtain 0.04”
wc of draft at the breech sampling hole. Not applicable for Direct Vent.
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