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5
program
setup
program
setup
program
setup
program
setup
program
setup
program
setup
DI1
FOR
40.
COOLING
:
N
.C.
AQUASTAT
DIGITAL
39.
37
.
ENABLE 2 PIPE
SYSTEM?
ENABLE
3
PIPE
FAN COIL? NO
36.
AUX RELAY OUTPUT
34.
TIMECLOCK
AUX RELAY
DIFF: 01F
33.
OFFSET
: 01F
AUX RELAY
32
.
31.
SET OVERRIDE
TIME
: 180
MINTES
program
setup
program
setup
TIMECLOCK OUTPUT
OCCUPIED
=
35
.
program
setup
38.
SELECT 2 PIPE
program
setup
OPEN
NO
Cool
MODE
:
program
setup
program
setup
program
setup
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setup
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setup
program
setup
MOD OUT
1
UNOCC
50
.
ACTION
: 0 or 4
mA
MOD OUT 2
0-
20mA
49.
47
.
MOD OUT 2
ACTION
:
MOD OUT
1
ACTION
:
DIRECT
46.
MO
1
SETPOINT
44.
OFFSET
: 00F
MO2 SETPOINT
BAND
:
05
F
43.
BAND
:
05
F
MO
1
PROPORTIONAL
42
.
41.
CHANGEOVER
SETPOINT
: 090F
program
setup
program
setup
MO2 SETPOINT
OFFSET
:
45
.
program
setup
48.
MOD OUT
1
program
setup
00F
DIRECT
RANGE
: 0-
20mA
RANGE
:
Occupied Cool Setpoint Screen.
Set the
occupied cool setpoint.
Occupied Cool Setpoint Screen.
Set the
occupied cool setpoint.
Occupied Cool Setpoint Screen.
Set the
occupied cool setpoint.
Unoccupied Cool Setpoint Screen.
Set
the
unoccupied cool setpoint.
User Setpoint Limit Screen.
Enter the num-
ber of degrees you want the user to be allowed to
change the preset occupied setpoints up or down.
Override Time Screen.
Enter the number of
minutes (0 to 255) that the thermostat will maintain
occupied setpoints when overridden.
Auxiliary Relay Offset Screen.
Enter an
offset value for the auxiliary relay. This screen is
not used if step 26 is set to TIMECLOCK. (SZ1064
only)
Auxiliary Relay Differential Screen.
Enter a differential value for the auxiliary relay. This
screen is not used if step 26 is set to TIMECLOCK.
(SZ1064 only)
Auxiliary Relay Output Screen.
Choose
whether the auxiliary output will be used for either a
TIMECLOCK output, a stage of HEAT or a stage of
COOL. (SZ1064 only)
Time Clock Output Screen.
Choose wheth-
er the auxiliary output will be OPEN or CLOSED
during occupied periods. This screen is not used if
step 26 is set to HEAT or COOL. (SZ1064 only)
3-Pipe Fan Coil Enable Screen.
Choose
YES if using a three-pipe system. Otherwise
choose NO. If YES is selected, skip to step 42.
2-Pipe Fan Coil Enable Screen.
Choose
YES if using a two-pipe system. Otherwise choose
NO. If NO is selected, and skip to step 42 and it is
assumed to be a four-pipe system.
Digital Aquastat Input Screen.
Choose
whether DI1 will be normally open (N.O.) or nor-
mally closed (N.C.) for cooling. The next screen
is skipped.
Analog Aquastat Input Screen.
If an
analog aquastat is selected, choose the changeover
setpoint to distinguish when hot or cold water is
available. If the 'pipe' temperature is below this
setpoint, analog output 2 will do cooling. If the 'pipe'
temperature is above this setpoint, analog output 2
will do heating. (SZ1064 only)
Modulating Output 1 Proportional Band
Screen.
Enter the number of degrees away from
the heating setpoint that the valve will be fully open.
Modulating Output 2 Proportional Band
Screen.
Enter the number of degrees away from
the cooling setpoint that the valve will be fully open.
Modulating 1 Setpoint Offset Screen.
Enter an offset value for modulating output 1. This
is the number of degrees below the heating setpoint
before the output begins to modulate.
Modulating 2 Setpoint Offset Screen.
Enter an offset value for modulating output 2. This
is the number of degrees above the cooling setpoint
before the output begins to modulate.
Modulating 1 Output Action Screen.
Choose whether modulating output 1 will be direct
or reverse acting.
Modulating 2 Output Action Screen.
Choose whether modulating output 2 will be direct
or reverse acting.
Modulating Output 1 Range Screen.
Choose whether the modulating output 1 range will
be 0-20 mA or 4-20 mA.
LIMIT SETPOINT
:
30.
/
-:
05
F
UNOCCUPIED COOL
80F
29
.
24
.
UNOCCUPIED HEAT
SETPOINT
:
SET UNOCCUPIED
18.
FAN MODE
:
AUTO
SET OCCUPIED FAN
SPEED
:
MED
17
.
MODE
:
AUTO
SET OCCUPIED FAN
16.
15
.
SET SYSTEM
MODE
:
SET UNOCCUPIED
FAN SPEED
:
19.
AUTO
MED
60F
SETPOINT
:
OCCUPIED HEAT
SETPOINT A
:
70
F
20
.
OCCUPIED HEAT
SETPOINT B
:
70
F
21
.
OCCUPIED HEAT
SETPOINT C
:
70
F
22
.
OCCUPIED HEAT
SETPOINT D
:
70
F
23
.
25
.
OCCUPIED COOL
75
F
SETPOINT A
:
26
.
OCCUPIED COOL
75
F
SETPOINT B
:
27
.
OCCUPIED COOL
75
F
SETPOINT C
:
28
.
OCCUPIED COOL
75
F
SETPOINT D
:
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DI1
FOR
40.
COOLING
:
N
.C.
AQUASTAT
DIGITAL
39.
37
.
ENABLE 2 PIPE
SYSTEM?
ENABLE
3
PIPE
FAN COIL? NO
36.
AUX RELAY OUTPUT
34.
TIMECLOCK
AUX RELAY
DIFF: 01F
33.
OFFSET
: 01F
AUX RELAY
32
.
31.
SET OVERRIDE
TIME
: 180
MINTES
program
setup
program
setup
TIMECLOCK OUTPUT
OCCUPIED
=
35
.
program
setup
38.
SELECT 2 PIPE
program
setup
OPEN
NO
Cool
MODE
:
2-Pipe Fan Coil Control Screen.
For a
two-pipe fan coil, select whether it is a HEAT only
system, COOL only system, or whether the system
is capable of heating and cooling H&C. If HEAT or
COOL is selected, skip to step 42.
Aquastat Mode Screen
. With a two-pipe
system choose whether the Aquastat function is
DIGITAL (DI1) or ANALOG (T2). If analog is select-
ed, skip to step 41 (SZ1064 only)
