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47
Table 35 — Setpoints
Table 36 — Supply Air Reset Configuration
Table 37 — Cooling Configuration
CSB A2 Feedback Alarm (
CS.A2
) — This configuration is
used to enable or disable the compressor A2 feedback alarm
(105 ton size units only). This configuration must be enabled at
all times for 105 ton units.
CSB B1 Feedback Alarm (
CS.B1
) — This configuration is
used to enable or disable the compressor B1 feedback alarm
(105 ton size units only). This configuration must be enabled at
all times for 105 ton units.
CSB B2 Feedback Alarm (
CS.B2
) — This configuration is
used to enable or disable the compressor B2 feedback alarm
(105 ton size units only). This configuration must be enabled at
all times for 105 ton units.
Compressor A1 High Pressure Switch Trip (
HPS.A
) — This
configuration is used when high-pressure switches are used.
This is true for all units except the 105 ton size units which
incorporate current sensor boards (CSB). In the case of a high-
pressure switch trip on compressor A1, the control will sample
the discharge pressure on circuit A and store this value minus
3 psig and attempt to catch this failure the next time before the
switch trips. The value is modifiable by the user but will still
get overriden if the control does not catch a high pressure
condition before the switch trips.
Compressor B1 High Pressure Switch Trip (
HPS.B
) — This
configuration is used when high-pressure switches are used.
This is true for all units except the 105 ton size units which
incorporate current sensor boards (CSB). In the case of a
high-pressure switch trip on compressor B1, the control will
sample the discharge pressure on circuit B and store this value
minus 3 psig and attempt to catch this failure the next time
before the switch trips. The value is modifiable by the user but
will still get overriden if the control does not catch a high
pressure condition before the switch trips.
High SST Alert Delay Time (
H.SST
) — This option allows
the low saturated suction temperature alert timing delay to be
adjusted.
COOL MODE SELECTION PROCESS — The Z Series
Comfort
Link™ controls offer three distinct methods by which
they may select a cooling mode.
1. Thermostat (
C.TYP
=3 and 4): The thermostat does not
depend upon the state of occupancy or temperature and
the modes are called out directly by the discrete inputs
(
Inputs
→
STAT
→
Y1
and
Y2
).
2. VAV cooling types (
C.TYP
=1 and 2) are called out
in the occupied period (
O
perating Modes
→
MODE
→
OCC
=ON).
3. VAV cooling types (
C.TYP
=1 and 2) are called out in the
unoccupied period (
Operating Modes
→
MODE
→
OCC
=OFF). They are also used for space sensor control
types (
C.TYP
=5 and 6) in both the occupied and unoccu-
pied periods.
This section is devoted to the process of cooling mode
determination for the three types outlined above.
ITEM
EXPANSION
RANGE
UNITS
CCN POINT
DEFAULT
OHSP
Occupied Heat Setpoint
40-99
dF
OHSP
68
OCSP
Occupied Cool Setpoint
40-99
dF
OCSP
75
UHSP
Unoccupied Heat Setpoint
40-99
dF
UHSP
55
UCSP
Unoccupied Cool Setpoint
40-110
dF
UCSP
90
GAP
Heat-Cool Setpoint Gap
2-10
deltaF
HCSP_GAP
5
V.C.ON
VAV Occ. Cool On Delta
0-25
deltaF
VAVOCON
3.5
V.C.OF
VAV Occ. Cool Off Delta
1-25
deltaF
VAVOCOFF
2
SASP
Supply Air Setpoint
45-75
dF
SASP
55
SA.HI
Supply Air Setpoint Hi
45-75
dF
SASP_HI
55
SA.LO
Supply Air Setpoint Lo
45-75
dF
SASP_LO
60
SA.HT
Heating Supply Air Setpt
90-145
dF
SASPHEAT
85
T.PRG
Tempering Purge SASP
–20-80
dF
TEMPPURG
50
T.CL
Tempering in Cool SASP
5-75
dF
TEMPCOOL
5
T.V.OC
Tempering Vent Occ SASP
–20-80
dF
TEMPVOCC
65
T.V.UN
Tempering Vent Unocc. SASP
–20-80
dF
TEMPVUNC
50
ITEM
EXPANSION
RANGE
UNITS
CCN POINT
DEFAULT
EDT.R
EVAP.DISCHRGE TEMP RESET
RS.CF
EDT Reset Configuration
0 - 3
EDRSTCFG
2
RTIO
Reset Ratio
0 - 10
RTIO
2
LIMT
Reset Limit
0 - 20
deltaF
LIMT
10
RES.S
EDT 4-20 ma Reset Input
Enable/Disable
EDTRSENS
Disable
ITEM
EXPANSION
RANGE
UNITS
CCN POINT
DEFAULT
COOL
COOLING CONFIGURATION
Z.GN
Capacity Threshold Adjst
–10 - 10
Z_GAIN
1
MC.LO
Compressor Lockout Temp
–25 - 55
dF
OATLCOMP
40
L.L.EN
Lead/Lag Operation ?
Yes/No
LLENABLE
No
M.M.
Motor Master Control ?
Yes/No
MOTRMAST
No
HPSP
Head Pressure Setpoint
80 - 150
dF
HPSP
113
A1.EN
Enable Compressor A1
Enable/Disable
CMPA1ENA
Enable
A2.EN
Enable Compressor A2
Enable/Disable
CMPA2ENA
Enable
B1.EN
Enable Compressor B1
Enable/Disable
CMPB1ENA
Enable
B2.EN
Enable Compressor B2
Enable/Disable
CMPB2ENA
Enable
CS.A1
CSB A1 Feedback Alarm
Enable/Disable
CSB_A1EN
Enable
CS.A2
CSB A2 Feedback Alarm
Enable/Disable
CSB_A2EN
Enable
CS.B1
CSB B1 Feedback Alarm
Enable/Disable
CSB_B1EN
Enable
CS.B2
CSB B2 Feedback Alarm
Enable/Disable
CSB_B2EN
Enable
HPS.A
CMPA1 Hi.Pr.Sw. Trip
365 - 415
PSIG
HPSATRIP
415
HPS.B
CMPB1 Hi.Pr.Sw. Trip
365 - 415
PSIG
HPSBTRIP
415
H.SST
Hi SST Alert Delay Time
5 - 30
min
HSSTTIME
10
Summary of Contents for WEATHERMASTER 48Z030
Page 103: ...103 Fig 15 Typical Power Schematic Sizes 030 050 Shown a48 8408 ...
Page 104: ...104 Fig 16 Main Base Board Input Output Connections a48 8409 ...
Page 105: ...105 Fig 17 RCB ECB CEM SCB Input Output Connections a48 8410 ...
Page 106: ...106 Fig 18 Typical Gas Heat Unit Control Wiring 48Z055 105 Units Shown a48 8411 ...
Page 107: ...107 Fig 19 Typical Electric Heat Unit Control Wiring 50Z055 105 Units Shown a50 8248 ...
Page 108: ...108 Fig 20 Typical Power Wiring 115 V 48Z Units a48 8412 ...
Page 109: ...109 Fig 21 Typical Power Wiring 115 V 50Z Units a50 8249 ...
Page 110: ...110 Fig 22 Typical Gas Heat Section Size 055 105 Units Shown a48 8413 ...
Page 111: ...111 Fig 23 Component Arrangement Size 030 050 Units ...
Page 112: ...112 Fig 24 Component Arrangement Size 055 070 Units ...
Page 113: ...113 Fig 25 Component Arrangement Size 075 105 Units ...