Carrier 33ZCVAVTRM Specifications download pdf (Page 71)

Master Zone Maintenance Table — The Master Zone

Maintenance Table (MZNMAINT) displays variables used by

the Linkage Coordinator zone controller when determining the

system mode (heat/cool/vent). It also indicates whether a by-

pass controller and an air source are being used and which zone

is the reference zone. The user may override cooling or heating

time guards from this table. See Table 17.

DESIRED SYSTEM MODE — This variable will display

the desired operating mode of the air source.

Desired

Operating Mode: Display Range COOLING, HEATING,

FREECOOL, PRES-

SURE, EVAC, OFF

Network Access Read only

SYSTEM MODE — This variable will display the current

system mode of the air source, if Linkage is available, or the

mode determined by the Linkage Coordinator using the prima-

ry air sensor, if available. If the primary air sensor has failed or

was not installed, the Linkage Coordinator will assume the

default mode of cooling.

System Mode: Display Range COOLING, HEATING,

FREECOOL, PRES-

SURE, EVAC, OFF

Network Access Read only

AIR SOURCE DETECTED — This variable displays whether

the Linkage Coordinator zone controller has detected a

communicating air source at the address configured in the

Linkage Configuration Table.

Air Source

Detected: Display Range Yes/No

Network Access Read only

BYPASS CONTROLLER — This variable displays whether

the Linkage Coordinator zone controller has detected a com-

municating bypass controller as configured in the Linkage

Configuration Table.

Bypass

Controller: Display Range Yes/No

Network Access Read only

REFERENCE ZONE DEMAND — This variable displays

the demand of the reference zone. When occupied, the demand

will be a function of T56 bias and configured Occupied

Heating and Cooling set points. When in unoccupied mode, the

demand will be directly related to configured Unoccupied

Heating and Cooling set points.

The reference zone is re-determined on every scan of the

zone controllers which is at a one minute frequency.

Reference Zone

Demand: Display Range delta 0.00 to 99.9 F

Network Access Read only

REFERENCE ZONE # — This variable displays the number

of the zone whose heating or cooling needs are the greatest at

any time and that requires the same mode as the system.

For example, if the Desired System Mode is cooling, the

Reference Zone # is that mode that has the greatest cooling

need.

The zones are numbered such that the master zone is zone

number 1 and the zone that is one address below the master

zone is zone number 2 and so on to zone number 32. If the

master zone is at address 0, 118 then zone no. 2 is the zone

controller at address 0, 117 and zone no. 3 is the zone controller

at address 0, 116 and so on.

Reference Zone

Number: Display Range 1 to 32

Network Access Read only

COOL MODE LOCK OUT — This variable displays whether

the system has been locked out of cooling mode. If this

decision is forced to Ye s, the system may not go into cooling

mode regardless of how many zones are calling for cooling.

Cool Mode

Lock Out: Display Range Yes/No

Network Access Read/Write

AVERAGE COOL DEMAND — This variable displays the

average cooling demand of all occupied linked zones, taking

into consideration the size of each zone as configured in the

Terminal Service Configuration Table. This is so that the size

of a zone will be considered when comparing its demand to

other zones. If all zones are unoccupied then all zones will be

included in the calculation.

Average Cool

Demand: Display Range delta 0.00 to 99.9 F

Network Access Read Only

Table 17 — Master Zone Maintenance Table

DESCRIPTION VALUE UNITS STATUS FORCE NAME

Desired System Mode COOLING NEXTMODE

System Mode COOLING LINKMODE

Air Source Detected? Yes AIRSOURC

Bypass Controller? No BYPASS

Reference Zone Demand 0.0 ^F REF_DMD

Reference Zone # 0REF_ZONE

Cool Mode Lock Out? No C_LOCK

Average Cool Demand 0.0 ^F AVGC_DMD

Max Cool Demand 0.0 ^F MAXC_DMD

Max Cool Demand Zone 0MAXCZONE

Cooling Time Guard 0.0 min C_TGUARD

Time Guard Override No TG_OVRD

Heat Mode Lock Out? No H_LOCK

Average Heat Demand 0.0 ^F AVGH_DMD

Max Heat Demand 0.0 ^F MAXH_DMD

Max Heat Demand Zone 1MAXHZONE

Heating Time Guard 0.0 min H_TGUARD

Mode Reselect Time 0.0 min RESELECT

Outdoor Air Temperature 0.0 dF OAT

1 2 ... 66 67 68 69 70 71 72 73 74 75 76 ... 315 316

Carrier 33ZCVAVTRM Specifications Page 71

Comments to this Manuals

Carrier 33ZCVAVTRM Specifications Page 71

Comments to this Manuals

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