12.07.2015 Views

DOE-2 Reference Manual Version 2.1 - DOE2.com

DOE-2 Reference Manual Version 2.1 - DOE2.com

DOE-2 Reference Manual Version 2.1 - DOE2.com

SHOW MORE
SHOW LESS
  • No tags were found...

Create successful ePaper yourself

Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.

MAX-COOL-RATEBASEBOARD-RATINGPANEL-LOSS-RATIOMIN-CFM-RATIOheat addition rate. If and when MAX-HEAT-RATE is used, itwill override capacity calculations based on peak (or designday) loads (calculated by the LOADS program). Note thatthe input value for MAX-HEAT-RATE is a negative number. Ifthe minus sign is omitted an ERROR will occur. See Sec. Dof this chapter for additional discussion.Note that the keyword MAX-HEAT-RATE can be used to suppressthe heating capability of any given zone, should this bedesired. To do so, the user enters a finite, but very lowvalue for the keyword (e.g., -1). Zone air flow will thenbe calculated on the basis of cooling only, rather than onthe larger of the cooling and heating requirements.is the maximum net heat extraction rate of the air systemfor the zone. If and when this data entry is used, it willoverride capacity calculations based on peak (or designday) loads (calculated by the LOADS program). See Sec. Dof this chapter for additional discussion.iNote that the keyword MAX-COOL-RATE can be used to suppressthe cooling capability of any given zone, in the mannerdescribed above for MAX-HEAT-RATE.is the baseboard heating element capacity for the zone.See Sec. D of this chapter for discussion related to zoneheating capacity. The input for this keyword should be anegative number.is the heat loss from the floor heating panel in the zone,expressed as a decimal fraction of the energy added to thezone by the panel. Panel losses are the heat transferredfrom the underside of floor panels, the upper side ofceiling panels, and the edges of any panel. The user isrequired to calculate or estimate this ratio, which theprogram assumes to remain constant over the full range ofpanel heating output. This keyword applies only to zonesequipped with panel heating elements.is the minimum allowable zone air supply flow rate,expressed as a decimal fraction of design flow rate. Thekeyword MIN-CFM-RATIO is applicable to variable-volume typesystems only. (This keyword appears also under theSYSTEM-TERMINAL command. There it is a "system level"keyword and it applies to all zones in the system; here itis a "zone level" keyword and appl ies only to this zone.This capability allows different MIN-CFM-RATIOs for eachzone). If the sum of all zones' MIN-CFM-RATIOs times thedesign flow rate equals a value less than the specifiedoutside air flow rate, there is implied 100 per centoutside air operation at, and possibly above, the zoneMIN-CFM-RATIO. If THERMOSTAT-TYPE = REVERSE-ACTION is notspecified, zone MIN-CFM-RATIO is also the flow ratefraction in the heating mode.IV.200 (Revised 5/81)

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!