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19
T30
SW1
T29T28REDOGYWRCT25
T1
T21 T22 T23 T24
T2 T3
Line
AUX
1
AUX
2
Neutral
T4 T5 T6 T7 T8 T9 T10 T11 T12 T13 T14 T15 T16 T17
K3 K4 K5
COM
N.O.
K6
COM
N.O.
COM
N.O.
COM
N.O.
T18 T19
T20
RELAY
FEED
T43
SPARE
T26 T27 GRNYEL
P2 P3
F2 MAX 2 amp
F1
MAX
1
amp
R
24Vac12Vac Com
DET
C
Defrost
Freeze
Fan Hi Fan Med Fan Low
ON
P1
C4
C5
K7 K1 K2K8
VDR1
C1
CR1
TP1
8 7 6 5 4 3 2 1
C6 C7
T31
T32
T33
T34
T35
T36
T37
T38
T39
T40
T41
T42
Contact 1
N.0. COM N.C. N.0. COM N.C. N.0. COM N.C. N.0 . COM
Contact 2 Contact 3 Contact 4
Digital Controls
DIP SWITCHES TO BE
ADJUSTED BY QUALIFIED
TECHNICIANS ONLY.
N.C
RWYG
A/C Unit
Thermostat
To “Y”
To “C”
Standard 24 Volt
Thermostat
Connection
(Thermostats are not avail-
able through Nutech)
Thermostat Heat Anticipator Settings
Mechanical Thermostats - start at .5 amp and may need to
be increased depending upon the residual heat left in the
hydronic coil and duct work.
Electronic Thermostats - to be set on electric style heat.
Off Season Circulation Timer
Water is periodically circulated through the space heating
loop during the summer and other periods of infrequent use.
The concern is that water which remains stationary in the
heating loop during the summer may be less than desirable
as domestic hot water when it is returned to the water heater
at system startup in the fall.
Basic Functions
C - Common
R - 24 volt Supply
W - Medium or High Fan Relay with Circulation Pump
(The speed depends on Dip Switch # 6 setting)
Y&G- Medium or High Fan Relay
(The speed depends on Dip Switch # 7 setting)
G - Low Speed Fan Relay
O - High Speed Fan Relay with Circulation Pump
Function and Controls Standard Motor
Standard Motor DIP Switch Settings
(DIP #1-8 OFF is Factory Setting)
ON
8 7 6 5 4 3 2 1
DIP #2 to ON will disable the
Off Season Circulation Timer
DIP #6 to ON will select
Medium Speed for heating
(Factory setting is OFF for High
Speed)
DIP #7 to ON will select
Medium Speed for cooling
switch (Factory setting is OFF
for High Speed)
Do not adjust any other DIP switches than
indicated above.
WARNING
Do not energize the CAF until the plumbing is
connected and commissioned. Failure to do so
will damage the pump.
WARNING