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CF-CH(E)-i&s-08
INSTALLATION AND SERVICE MANUAL
HYDRONIC HEATING BOILERS and
DOMESTIC WATER HEATERS
399,999 - 2,070,000 Btu/hr MODELS
WARNING: If the
information in this manual
is not followed exactly, a
fire or explosion may
result causing property
damage, personal injury or
loss of life.
– Do not store or use
gasoline or other
flammable vapors and
liquids in the vicinity of
this or any other appliance.
WHAT TO DO IF YOU SMELL
GAS
• Do not try to light any
appliance.
WARNING: Improper •Do n
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Hydronic Heating Boilers and Domestic Water Heaters Table of Contents Table of Contents General Product Information . . . . . . . . . . . . . . . . . . . . . . . . .3 Low Temperature Return Water Systems . . . . . . . . . . .36 Special Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 Radiant Floor and Snow Melt Heating Systems . . . . . .37 Unpacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 Boiler Flow Rate . . . . . . . . . . . . . . . . .
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Installation and Service Manual • Wash potentially contaminated clothes separately from other GENERAL PRODUCT clothing. Rinse clothes thoroughly. • NIOSH stated First Aid: INFORMATION Eye: Irrigate immediately. Breathing: Fresh air. Special Instructions This manual supplies information for the installation, operation and servicing of the appliance. Read and understand this manual WARNING: The combustion chamber completely before installing unit. lining in this appliance contains ceramic fib
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Hydronic Heating Boilers and Domestic Water Heaters 4. Never cover your unit, lean anything against it, store trash SAFETY INFORMATION or debris near it, stand on it or in any way block the flow of fresh air to your unit. The information contained in this manual is intended for use by qualified professional installers, service technicians or gas 5.UNDER NO CIRCUMSTANCES MUST suppliers. Consult your local expert for proper installation or FLAMMABLE MATERIALS SUCH AS GASOLINE service procedures.
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Installation and Service Manual PRODUCT IDENTIFICATION Front View Rear View FIG. 1 Front and Rear View 5
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Hydronic Heating Boilers and Domestic Water Heaters Clearances from Combustible INSTALLATION Construction This unit meets the safe lighting performance criteria with the Maintain minimum specified clearances for adequate gas manifold and control assembly provided, as specified in operation. Allow sufficient space for servicing pipe the ANSI standards for gas-fired units, ANSI Z21.13/CSA 4.9 connections, pump and other auxiliary equipment, as well as and ANSI Z21.10.3/CSA 4.3. the unit. See ratin
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Installation and Service Manual The value of ΔTMIN can be changed to a value between 1°F Base for Combustible Floors and 20°F. This will cause the unit to continue pump operation There are no manufactured combustible floor base kits until the ΔT is less than the value selected (30 second available for 990,000 - 2,070,000 Btu models. See Table-A minimum). below for floor base kits that are available. You must construct a base for combustible floor installation. A value of “ON” is selectable t
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Hydronic Heating Boilers and Domestic Water Heaters 4. Glycol is denser than water and changes the viscosity of INSTALLATION Continued the system. The addition of glycol will decrease heat transfer and increase frictional loss in the boiler and related Shut-Down and Draining piping. A larger pump with more capacity (15% to 25% more) may be required to maintain desired flow rates and If for any reason, the unit is to be shut off, the following prevent a noise problem in a glycol system. precautio
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Installation and Service Manual Combustion Air Options CAUTION: Under no circumstances should the mechanical room ever be under a negative pressure. Particular care should be taken where exhaust fans, attic fans, clothes dryers, compressors, air handling units, etc., may take away air from the unit. This unit has four combustion air options. 1. Outside Combustion Air, No Ducts You can direct outside combustion air to this unit using either one or two permanent openings. One Opening The open
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Hydronic Heating Boilers and Domestic Water Heaters starting on page 22 for specific information regarding this INSTALLATION Continued option. 4. Combustion Air from Interior Space You can direct combustion air to this unit using air from an adjoining interior space. You must provide two openings from the boiler room to the adjoining room. Each of the two openings must have a net free area of one 2 square inch per 1000 Btu input (22cm per kW), but not less 2 than 100 square inches (645cm ). FI
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Installation and Service Manual Exhaust Fans Vertical Vent Termination Clearances and Location Any fan or equipment which exhausts air from the boiler room may deplete the combustion air supply and/or cause a down The vent terminal should be vertical and exhaust outside the draft in the venting system. Spillage of flue products from the building at least 2 feet (0.61m) above the highest point of the venting system into an occupied living space can cause a very roof within a 10 foot (3.05m) radiu
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Hydronic Heating Boilers and Domestic Water Heaters Sidewall Vent Termination Clearances and INSTALLATION Continued Location MORE THAN 10' Locate the bottom of the vent terminal at least 12 inches (30cm) 10' above grade and above normal snow levels. Locate the bottom of the vent terminal at least 7 feet (2.13m) above grade when located adjacent to public walkways. Do not terminate directly RIDGE above a public walkway. 2' MIN. Do not terminate the venting system in a window well, stairwell, 3'
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Installation and Service Manual Length of Air Inlet Pipe TABLE - B The installed length of air inlet pipe from the unit to the outside air Flue and Air Inlet Pipe Sizes inlet cap must not exceed 50 equivalent feet (15.2m). Subtract 5 feet (1.5m) of equivalent length for each 90° elbow. Subtract Input Flue Air Inlet 2.5 feet (0.7m) of equivalent length for each 45° elbow. Btu/hr Size Size* Do not exceed the limits for the combustion air inlet piping 399,999 6" 6" lengths. 500,000 6" 6" 650,000 8
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Hydronic Heating Boilers and Domestic Water Heaters You must install the combustion air inlet cap and the powered INSTALLATION Continued vent cap on the same wall and in the same pressure zone. Do not install the combustion air inlet cap closer than 10 feet (3.05m) from an inside corner of an L-shaped structure. Vertical Rooftop Air Inlet Use the vertical air inlet terminations available from the appliance manufacturer, recommended and/or supplied by the vent manufacturer, or use two 90° elbows
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Installation and Service Manual 4. Horizontal DirectAire™ Venting If the air inlet cap is within a 10-foot (3.05m) radius of the flue outlet, the point of termination for the combustion air inlet cap This option uses a powered vent assembly to exhaust the flue must be at least 3 feet (0.91m) below the point of flue gas products out a sidewall. Combustion air is supplied by a pipe termination (vent cap). from the sidewall. See page 21 for venting details. Do not install the combustion air inlet
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Hydronic Heating Boilers and Domestic Water Heaters system operating under positive pressure. Connecting to a positive INSTALLATION Continued pressure stack may cause flue products to be discharged into the living space causing serious health injury. 1. Conventional Negative Draft Venting Flue Outlet Piping With this venting option, you must use Type-B double-wall (or IMPORTANT: Before installing a venting equivalent) vent materials. Vent materials must be listed by a system, follow all venting
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Installation and Service Manual 3. If possible, close all building doors and windows. Close all WARNING: Do not vent this unit into a doors between the space in which the appliances remaining masonry chimney without a sealed stainless connected to the common venting system are located and steel liner system. Any breaks, leaks, or damage other building spaces. to the masonry flue/tile will allow the positive- 4. Turn on clothes dryers and any other appliances not pressure flue products to leak
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Hydronic Heating Boilers and Domestic Water Heaters Vent Kits INSTALLATION Continued The Vertical DirectAire™ vent system requires you to install WARNING: Only use a sidewall air inlet two vent pipes directly to the unit; one vertical pipe with a cap supplied by the appliance rooftop termination for the flue products and one pipe for manufacturer or a rooftop air inlet cap combustion air. For this venting option, you must purchase the supplied by the vent manufacturer. Using DV box adapter fro
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Installation and Service Manual in a venting kit provided by the appliance manufacturer. See TABLE-D DirectAire™ Kits TABLE–E for kit numbers. Input Horizontal Vertical The venting kit includes the sidewall fan, vent hood, tapered Btu/hr Kit* Kit* vent adapter, barometric damper, proving switch and all necessary relays to interlock with the heaters control system. 399,999 SVK3047 VDK3026 The tapered vent adapter reduces the vent size at the inlet to the 500,000 SVK3047 VDK3026 fan. There should
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Hydronic Heating Boilers and Domestic Water Heaters INSTALLATION Continued The following is a detailed explanation of Sidewall Venting Without an External Power Vent Fan installation requirements. Flue Outlet Piping Venting Guidelines If using this venting option, a sealed AL29-4C venting system for flue products is required on all models of this appliance. This venting system operates with a positive pressure in the vent. The internal combustion air blowers generate this positive pressure which
