15
Energy Management Module Heat Reclaim
(EMM HR) —
The EMM HR is available as a factory-
installed option. The EMM HR communicates the status of all
of the inputs with the MBB. The MBB then determines the ap-
propriate operating mode. Operating modes are: normal cool-
ing, heat reclaim, and simultaneous one circuit cooling/one cir-
cuit heat reclaim. See Table 11 and Fig. 10.
Table 10 — Energy Management Module (EMM) Inputs and Outputs
* 250 ohm, 1/2 watt resistor required for 4-20 mA input.
CAUTION
Care should be taken when interfacing with other manufac-
turer’s control systems due to possible power supply differ-
ences, full wave bridge versus half wave rectification,
which could lead to equipment damage. The two different
power supplies cannot be mixed.
Comfort
Link™ controls
use half wave rectification. A signal isolation device should
be utilized if incorporating a full wave bridge rectifier sig-
nal generating device is used.
INPUT
DESCRIPTION
I/O TYPE
I/O POINT NAME
CONNECTION POINT
4-20 mA or 0-5 vdc Demand Limit
4-20 mA Demand Limit
0-5 vdc*
INPUTS
GEN.I
DMND
EMM-J7B-CH6
4-20 mA or 0-5 vdc Temperature Reset/Setpoint
4-20 mA Temperature Reset/
Set point
0-5 vdc*
INPUTS
GEN.I
RSET
EMM-J7A-CH5
Demand Limit SW2
Demand Limit Step 2
Switch Input
INPUTS
GEN.I
DLS2
EMM-J4-CH9
Ice Done
Ice Done Switch
Switch Input
INPUTS
GEN.I
ICE.D
EMM-J4-CH11A
Occupancy Override
Occupied Schedule Override
Switch Input
INPUTS
GEN.I
OCCS
EMM-J4-CH8
Remote Lockout Switch
Chiller Lockout
Switch Input
INPUTS
GEN.I
RLOC
EMM-J4-CH10
SPT
Space Temperature
Thermistor
10k Thermistor
TEMPERATURE
UNIT
SPT
EMM-J6-CH2
OUTPUT
DESCRIPTION
I/O TYPE
I/O POINT NAME
CONNECTION POINT
% Total Capacity
0-10 vdc
OUTPUTS
GEN.O
CATO
EMM-J8-CH7
RUN R
Run Relay
Relay
OUTPUTS
GEN.O
RUN
EMM-J3-CH24
SHD R
Shutdown Relay
Relay
OUTPUTS
GEN.O
SHUT
EMM-J3-CH25
221
221
221
221
100K
100K
100K
100K
100K
CH
17
CH
17
CH
16
CH
CH
1
8
CH
19
CH
20
CH
22
CH
21
CH
2
3
24 V
A
C
12 11
CH 11
b
CH 12
CH 1
3
CH 14
CH 15
CH
1
CH
2
CH
3
CH
4
CH 5
CH 6
CH 7
S
IO LEN
+ G -
+ G -
S
IO LEN
J
8
J7B
J7A
J6
J5
J4
J
3
J2B
J2A
J1
Fig. 10 — Energy Management Module and Energy Management Heat Reclaim Module
a30-4465
Summary of Contents for AQUASNAP 30RBA315
Page 77: ...77 Fig 37 Control Schematic 30RB060 080 a30 4619...
Page 78: ...78 Fig 38 Control Schematic 30RB090 150 a30 4620...
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Page 80: ...80 Fig 40 Control Schematic 30RB210 300 a30 4622...
Page 81: ...81 Fig 41 Heat Reclaim Control Schematic a30 4622...