Out of production, Hw-m2 series h-m2 series hp-m2 series – LAARS HP-M2 Series - Installation, Operation and Maintenance Instructions User Manual
Page 3
H Series
Page 3
HW-M2 Series
H-M2 Series
HP-M2 Series
HW-M2-130
H-M2-130*
HP-M2-130*
HW-M2-100
H-M2-100
HP-M2-100
HW-M2-60
H-M2-60
HP-M2-60
Integrated Hydronic Heating
Hydronic Heating Only
Hydronic Heating Only
and Domestic Hot Water Appliance
for Natural or Propane Gas.
for Natural or Propane Gas
for Natural or Propane Gas.
(Wall Hung).
* Field conversion only.
SECTION 10.
Maintenance
10A.
Owner Care and Maintenance ................... 20
10B.
Service Maintenance .................................. 21
SECTION 11.
Burner Input and Boiler
Component Descriptions
11A.
Adjusting Burner/Input ................................ 21
11A-1. Measuring CO
2
* .......................................... 21
11A-2. Measuring O
2
.............................................. 21
11B.
Cleaning Combustion Chamber Coil .......... 21
11C.
Unit Pump ................................................... 22
11D.
Gas Valve ................................................... 22
11E.
Safety Limit Switch ..................................... 22
11F.
Operating Control ....................................... 22
11G.
Igniter ......................................................... 22
11H.
Pressure Differential Switch ....................... 22
11I.
Transformer ................................................ 23
11J.
Low Limit (HW-M2 Series Only) ................. 23
11K.
Blower ........................................................ 23
11L.
Priority Relay - R1 (HW-M2 series only) ..... 23
11M.
Boiler Control .............................................. 23
11N.
Stack Switch ............................................... 23
11O.
Transfer Tank and Domestic Hot
Water Coil (HW-M2 series only) ................. 23
11P.
Thermostatic Union
(H(P)-M2-Series Only) ................................ 23
11Q.
Time Delay Relay (TDR)
(H(P)-M2-series only) ................................. 24
11R.
DHW Coil Replacement ............................. 24
11S.
Tank Replacement ..................................... 24
SECTION 12.
Symptom Evaluations
12A.
Delayed Ignition .......................................... 24
12B.
Noisy Operation .......................................... 25
12C.
Insufficient Hot Water
(HW - M2 - series only) .............................. 25
12D.
High Gas Consumption
(see also Cross Contamination) ................. 26
12E.
Shortcycling
(H-M2, HP-M2 Series only) ........................ 26
12F.
Cross Contamination and
Combustion Related Short Cycling
(units installed with Quick Vent) ................. 26
12G.
Lock Outs
Integrated Boiler Control Lock Outs ........... 27
SECTION 13.
Sequence of Operation
................................................................... 27
SECTION 14.
Replacement Parts
................................................................... 37
SECTION 15.
Trouble Shooting
15A.
S9301A Control Module ............................. 41
15B.
Quick Reference Trouble Shooter .............. 42
OUT OF
PRODUCTION