Carrier 58MVP Installation, Start-up, And Operating Instructions Manual

Also see for GAS FURNACE 58MVP: Installation, start-up, and operating instructions User's information manual User manual User's information manual User's information manual

Carrier 58MVP Installation, Start-up, And Operating Instructions Manual Manual pdf 22 page image

ACCESSORIES1. Electronic Air Cleaner (EAC)The furnace control EAC terminals are energized with 115v(1.0-amp maximum) during blower operation.Connect an accessory Electronic Air Cleaner (if used) using1/4-in. female quick connect terminals to the two male 1/4-in.quick-connect terminals on the control board marked EAC-1and EAC-2. The terminals are rated for 115VAC, 1.0 ampsmaximum and are energized during blower motor operation.(See Fig. 32.)2. Humidifier (HUM)Connect an accessory 24 VAC, 0.5 amp maximum humidifier(if used) to the 1/4-in. male quick-connect HUM terminal andCOM-24V screw terminal on the control board thermostat strip.The HUM terminal is energized when blower is energized inheating. (See Fig. 32.)DO NOT connect furnace control HUM terminal to HUM(humidifier) terminal on Thermidistat™, Zone Controller orsimilar device. See Thermidistat™, Zone Controller, thermo-stat, or controller manufacturer’s instructions for properconnection.Step 9—Direct VentingThe 58MVP furnaces require a dedicated (one 58MVP furnaceonly) direct-vent system. In a direct-vent system, all air forcombustion is taken directly from outdoor atmosphere, and all fluegases are discharged to outdoor atmosphere.REMOVAL OF EXISTING FURNACES FROMCOMMON VENT SYSTEMSWhen an existing Category I furnace is removed or replaced, theoriginal venting system may no longer be sized to properly ventthe remaining attached appliances. An improperly sized CategoryI venting system could cause the formation of condensate in thefurnace and vent, leakage of condensate and combustion products,and spillage of combustion products into the living space, etc.CARBON MONOXIDE POISONING HAZARDFailure to follow the steps outlined below for each applianceconnected to the venting system being placed into operationcould result in carbon monoxide poisoning or death.The following steps shall be followed for each applianceconnected to the venting system being placed into operation,while all other appliances connected to the venting system arenot in operation:1. Seal any unused openings in venting system.2. Inspect the venting system for proper size and horizontalpitch, as required in the National Fuel Gas Code, ANSIZ223.1/NFPA 54 or the CSA B149.1, Natural Gas andPropane Installation Code and these instructions. Deter-mine that there is no blockage or restriction, leakage,corrosion and other deficiencies, which could cause anunsafe condition.3. As far as practical, close all building doors and windowsand all doors between the space in which the appli-ance(s) connected to the venting system are located andother spaces of the building.4. Close fireplace dampers.5. Turn on clothes dryers and any appliance not connectedto the venting system. Turn on any exhaust fans, such asrange hoods and bathroom exhausts, so they are operat-ing at maximum speed. Do not operate a summerexhaust fan.6. Follow the lighting instructions. Place the appliancebeing inspected into operation. Adjust the thermostat soappliance is operating continuously.7. Test for spillage from draft hood equipped appliances atthe draft hood relief opening after 5 minutes of mainburner operation. Use the flame of a match or candle.8. If improper venting is observed during any of the abovetests, the venting system must be corrected in accordancewith the National Fuel Gas Code, ANSI Z223.1/NFPA54 and/or CSA B149.1, Natural Gas and Propane Instal-lation Code.9. After it has been determined that each appliance con-nected to the venting system properly vents when testedas outlined above, return doors, windows, exhaust fans,fireplace dampers and any other gas-fired burning appli-ance to their previous conditions of use.Vent system or vent connectors may need to be resized. For anyother appliances when resizing vent systems or vent connectors,system or connector must be sized to approach minimum size asdetermined using appropriate vent sizing table found in the NFGCor NSCNGPIC.22→