12
P/N 42-9472 Copyright 2008 Mestek, Inc.
Cast iron condensing boiler
Cast iron condensing boiler
— Control manual
Table 2
Control
parameters
Parameter
Master
boiler
Member
boiler
(see notes)
HEAT BAND
Set on master boiler only
LOC SETPOI NT
Set
HD only
1
SOURCE
Set
HD or DHW only
1,2
DHW SETPOINT
Set if DHW will
be used
DHW only
2
OP LIMIT
Set
Set
LIMIT BAND
Set
Set
IA RESET
ON if IAR is used,
or set to OFF
Do not set
OA SHUTDOWN
Set ON if used
or set to OFF
HDOA only
3
OA SETPOINT
Set if used
HDOA only
3
OA RESET
Set if used
HDOA only
3
OA SETPTS
Set if used
HDOA only
3
DELTA ENABLE
Set if used
Set if used
DELTA TEMP
Set if used
Set if used
PURGE TIME
Set if used
Set if used
ALWAYS ON
Set if used
Set if used
MASTER PUMP
Set if used
Do not set
NIGHT SETBACK
Set on master boiler only
OPTIONS (all)
Set
Set
AUX FUNCTIONS
Set on master boiler only
SYSTEM CLOCK
Set
Set
LOCAL ADD
Automatic
Set (beginning at 2)
CONSOLE ADD
Automatic
Set (beginning at 2)
MODULAR BOILER
Set on master boiler only
MODULATION PID
Set on master boiler only
FIRING MODE
Set on master boiler only
SENSOR #
Set
HD/HDOA only
1,3
TYPE
Set
HD/HDOA only
1,3
CALIBRATE ?
On any boiler if required
PASSWORD
Set
Set
COMMUNICATIONS
Set
Set
LOAD DEFAULTS
On any boiler if required
SYSTEM
On any boiler if required
Notes:
1 — HD Only
means to set the parameter for a member boiler only if it is wired for
Heat Demand override.
2 — DHW Only
means to set the parameter for a member boiler only if it is wired
for DHW Demand override.
3 — HDOA Only
means to set these parameters only if the member boiler will be
operated with outdoor reset when put in override mode with closure across its Heat
Demand terminals (requires outdoor sensor connected to boiler).
Set control parameters on keypads
Before turning boilers on to set parameters, disconnect all call for heat
wiring at the electrical connection boards. Th is will prevent the boiler
for att empting to cycle during the setup process.
See “Control menus and adjustments,” beginning on page 22 for a complete list of
control parameters and explanations.
Carefully read the parameter explanations in Table 8, page 25 through page 29.
When adjusting the limit band, operating limit (OP LIMIT), local setpoint (LOC
SETPOINT) and DHW setpoint, make sure the operating temperature bands do
not overlap or cause potential for nuisance cycling.
Indoor air reset — Use this option whenever possible. Th e indoor air technology
monitors space heating demand to help the boiler operate at the highest possible
effi ciency throughout the season. To operate with IAR, you must wire to the IAR
input terminals as described on page 18.
System clock — Set the system clock on all boilers to ensure the time stamps will
be accurate in the data logs.
Turn on the power to each boiler and set the on/off switch to ON as you set its
parameters.
Use the boiler’s keypad to enter the parameters as described on page 22.
Aft er sett ing a boiler’s parameters, turn the power off to the boiler until you are
ready to start the boiler up following the Boiler manual instructions.
Set the master boiler and each member boiler, following the guidelines given in
Table 2.
Start up boilers per 200i Boiler manual
Turn off power to all boilers.
Follow all instructions in the 200i Boiler manual to start up each boiler and verify
operation.
Connect network cables
Electrical shock hazard —
Turn off power to each boiler before
att empting to connect the network cables.
Before turning boilers on to check network operation, disconnect all
call for heat wiring at the electrical connection boards. Th is will prevent
the boiler for att empting to cycle during the setup process.
Master boiler cable
Connect an RJ45 cable to the master boiler H-Link OUT block (item 2, Figure 10,
page 13) or 3-wire shielded cable to the H-Link terminal strip (item 4, Figure 10,
page 13). Th e other end of this cable will be att ached to the fi rst member boiler in
following steps.
1.
2.
3.
4.
5.
6.
7.
8.
9.
1.
2.
1.
Close the external manual gas valve on every boiler
before
proceeding. DO NOT open any gas valve, or att empt to fi re any
boiler, until the boilers have been set up and verifi ed following
the instructions in the 200i Boiler manual.
Failure to comply could cause a boiler failure, leading to possible
severe personal injury, death or substantial property damage.
Method 1: SmartCycle modulation – local control
(cont.)
1
