Oil Heat – Eighteenth Edition – June 2015
17
EXPANDED DIGITAL MANAGER
12 ZONE MANAGER INSTALLATION INSTRUCTIONS
1. Remove cover from junction box.
Use a free knockout on the top of the junction box to mount a second or third transformer, wire black lead to “XFMR”
and white lead to “NEUTRAL” on relay board in box. (Use sections marked “120 VOLTS” only.) A second junction
box is not needed for the expanded Digital Manager. Wire additional transformer(s) in parallel with first transformer.
To wire in parallel, wire terminal “A” on one transformer to “A” on the other. Repeat with other low voltage terminal
“B”. Verify 24VAC output from all transformers BEFORE reconnecting the Manager.
2. Mount long panel on top of box cover with long screws provided in lower 4 holes with spacers down.
3. Mount expanded Digital Manager to cover plate over 4 long screws and 2 wide bolts (top 2 holes).
4. Wire the bottom half of expanded manager as 5 zones Digital Manager. For top half, attach one thermostat lead to a
zone and the other to A1 on lower half of manager. Attach one lead from zone valve or relay to corresponding zone
output and the other lead to 24VAC on lower half.
5. Option switches control energy recovery for extra zone outputs (see Location of Switches:
Figure. 4B
)
NOTICE:
When operating without an expanded manager, use a 12 zone service card – a 5 zone service card will not
function correctly. If you do not have a 12 zone service card, refer to “Operation of Boilers without Digital
Manager” in the Tech Manual.
Legacy 10 and 15 zone managers can be operated by placing a 5 zone service card on the lower quick
connects of the manager- only DHW and heat zones 1-4 will be active in this mode. Do NOT use a 12 zone
service board on legacy 10 and 15 zone managers.
12 Zone Manager
Figure 4C
Legacy 10 and 15 Zone
Manager
Figure 4D
T2
T4
A1
T3
B
A2
S
R
T
E
M
P
. SEN
S.
10
10
T10
THW
T1
T7
T8
T6
T9
T5
7
5
6
8
9
7
5
6
8
9
THERMOSTAT
T13
T11
T14
T12
11
12
14
13
11
12
14
13
HEATING
Z1
CIRC
IND
B2
B1
Z2
Z3
24VAC
Z10
Z4
ZHW
Z5
Z6
Z8
Z7
Z9
Z13
Z12
Z11
Z14
HEATING
INDUCER
BURNER
CIRCULATOR
140
MAKING ANY CONNECTIONS
READ INSTRUCTIONS BEFORE
MONITOR
120
100
130
CHIMNEYLESS
CAUTION
24 VAC CONNECTION ONLY.
190
160
150
170
POWER
ONLY
4
3
2
1
HOT WATER
THERMOSTAT
4
3
2
1
