ECR International 95M-200 User manual

Parameter guide
95M-200
GAS-FIRED DIRECT VENT
MODULATING HOT WATER BOILER
P/N 240006105, Rev. A [04/08]
Revise boiler control parameters only if you fully
understand the purpose and result of the chang-
es and on the advice of ECR Technical Support.
Tampering without understanding the control
settings in this manual will void the warranty
and can result in unreliable operation, with pos-
sible severe personal injury, death, or substan-
tial property damage.
WARNING
!

heating installer or service technician. Read all
instructions, including the Installation Manual
(P/N# 240006103), the Control Manual and Oper-
ating Instructions (P/N# 240006104), the User’s
Information Manual (P/N# 240006106), and this
Parameter Guide before attempting to program
the control, and be sure to perform all steps in
-
sult in severe personal injury, death, or substan-
tial property damage.
WARNING
!
IMPORTANT: Installation must comply
with local requirements and with the Na-

installations or CSA B149.1 or B149.2 for
Canadian installations.
DO NOT DESTROY THESE INSTRUCTIONS!!
Please read carefully and keep in a safe place
for future reference.

3
IMPORTANT: Read the following instructions
completely before installing!!
Keep this manual near boiler
and retain for future reference.
PARAMETER GUIDE
Printed in USA • Made In USA



The following dened symbols are used throughout
this manual to notify the reader of potential hazards of
varying risk levels.
Indicates an imminently hazardous situation
which, if not avoided, will result in death, serious
injury or substantial property damage.
DANGER
!
Indicates a potentially hazardous situation which,
if not avoided, could result in death, serious injury
or substantial property damage.
WARNING
!
Indicates a potentially hazardous situation which, if
not avoided, could result in minor or moderate injury
or property damage.
CAUTION
!
I - Safety Symbols and Warnings.......................3
II - Overview of Control Parameters...................4
III - Parameter Explinations................................6
IV- How To Set Parameters...............................11
V - Parameter Reference Table........................ 12
VI - Parameter Change Record........................ 19

4
II - Overview of Control Parameters

This manual includes detailed explanations of the adjustable
parameters. See Section III, “Parameter Explanations,” for
more information.
Revise boiler control parameters only if you fully
understand the purpose and result of the changes
and the advice of ECR Technical Support. Tamper-
ing without understanding the control settings in
this manual will void the warranty and can result in
unreliable operation, with possible severe personal
injury, death, or substantial property damage.
WARNING
!

The “Default Parameter Settings” table on the next page 1.
lists the factory default settings for this boiler at stan-
dard altitudes (up to 2000 feet). When in doubt, always
restore parameters to the default settings listed.

Factory default settings will work for most applications. 1.
There are situations, however, for which changes are
desirable or even mandatory (ex: multiple boiler applica-
tions using the Honeywell AM (HAM) module).
Default boiler settings are satisfactory for most high- 2.
mass systems (radiant slab, cast iron radiators, most
nned-tube radiation).

Outdoor Reset Applications: Outdoor reset operation
can sometimes be improved by adjusting parameters 4,
5, 6, and 7. Parameters 9, 10, and 11 might also be modi-
ed. See “Parameter Explanations” for more information on
outdoor reset.
High Altitude Installations: To ensure proper operation
parameter 17 must be set to 3,200 RPM in all installations
at or above elevations of 2,000 feet. Failure to do so could
result in potential for severe personal injury, death or sub-
stantial property damage.
Refer to Section IV of this manual for instructions on how to
change parameters.
 : Systems using fan coil units respond
to heat input rapidly, and may require larger differential
settings (parameters 22 - 25) for best performance. (See
“Parameter Explanations” for more information on control
differential and how to adjust.)
High-mass Systems: High-mass systems, such as in-slab
radiant and cast iron radiator systems, respond slowly to
heat input. The factory default settings will work well for
most of these applications.


equipment performance problems, resulting in
potential severe personal injury, death, or sub-
stantial property damage.
WARNING
!
Parameter 2: Do not set for continuous DHW pump.•
Parameters 13 and 15: Do not set higher than values•
in the “Default Parameter Settings” Table on the next
page.
Parameters 17 and 19: Do not set lower than•
values in the “Default Parameter Settings” Table on the
next page.
Parameters 24, 25, 26, and 27: Do not change from•
default settings.
Parameter 32: Do not change from value of 0.•
Parameter 33: Leave setting at 30° F for storage tank•
DW applications.
Parameter 34 (First Digit): Do not change from value of•
0.
Parameter 34 (Second Digit): Set only at 0 (2nd CH•
circuit off) unless using a Honeywell AM module. With
HAM, set second digit to 4 (0 - 10 V analog on HAM
capacity).
Parameter 35 (Both Digits): Do not change either digit•
from default setting.
Parameters 37, 39, 40, and 41: Do not change. For•
future use only.
Parameter 42 (First Digit): Do not change from default•
value.

5
DO NOT CHANGE ANY PARAMETER UNLESS THEAPPLICATION REQUIRES SPECIAL SETTINGS.
PARAMETER/DESCRIPTION GASCOM 
1 T3 Set DHW 150°F 150
2DHW System On 01
3 CH System On 01
4T1 Top CH-Mode 180°F 180
5T1 Foot CH-Mode 120°F 120
6T4 Minimum 0°F 00
7T4 Maximum 60°F 60
8T4 Frost Protection -20°F -20
9T4 Correction 0°F 00
10 T Blocking 60°F 60
11 Booster Time 30 Minutes 30
12 T Parallel Shift 10°F 10
13 Maximum Fan Speed CH 6000 rpm 60
15 Maximum Fan Speed DHW 6000 rpm 60
17 Minimum Fan Speed 2250 rpm 22
19 Ignition Fan Speed 3500 rpm 35
20 CH Postpump Time 0 Minutes 00
21 DHW Postpump Time 30.6 Seconds 03
22 CH Modulation Hysteresis On 4°F 04
23 CH Modulation Hysteresis Off 4°F 04
24 DHW Modulation Hysteresis On 4°F 04
25 DHW Modulation Hysteresis Off 4°F 04
26 DHW Detection Hysteresis On 4°F 04
27 DHW Detection Hysteresis Off 4°F 04
28 CH Blocking Time 10.2 Seconds 01
29 DHW Blocking Time 10.2 Seconds 01
30 DHW -> CH Blocking Time 30.6 Seconds 03
31 Modulate Back Difference T1 - T2 50°F 50
32 RMCI Address -01 -01
33 T Plus: SetvalueAdditional For DHW 30°F 30
34 2nd CH-Circuit (1st Digit) 2nd CH-Circuit Off 00
34 CH Type (2nd Digit) Room Thermostat 00
35 DHW 3-Way Valve/Pump (1st Digit) Hot Water Pump 13
35 DHW Type (2nd Digit) Storage Tank w/out Tank
Sensor (NTC3) 13
36 Manual Fan Speed Negative 1% -01
37 PWM-Pump Level (1st Digit) 3 31
37 PWM-Pump Level (2nd Digit) 1 31
38 T Set Hold Boiler Warm 40°F 40
39 T Top For 2nd CH Circuit 70°F 70
40 T Foot for 2nd CH Circuit 50°F 50
41 T Hysteresis For 2nd CH Circuit 20°F 20
42 Pump Settings For CH & DHW 00 21
42 Minimum Off Cycle Not Active 21

