Mammoth HydroBank MS User Manual

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MAMM-WSHP-IOM-1MSA (October 2014) - PN 7144926

HydroBank

Compact, Single Stage Water Source Heat Pumps

½ to 6 Tons – Horizontal and Vertical

INSTALLATION, OPERATION AND MAINTENANCE MANUAL

Questions and Answers:

S
Sarah BarajasAug 1, 2025
What to do if my Mammoth HydroBank MS Heat Pump is not cooling or heating properly?
- N
  Nancy GainesAug 1, 2025
  If your Mammoth Heat Pump isn't cooling or heating properly, start by checking for a dirty air filter and clean or replace it. Also, check the fan motor operation and look for any airflow restrictions. Another potential cause is a low refrigerant charge, in which case you should recover the refrigerant and recharge it to the amount specified on the nameplate. You might also have low water flow, which you can resolve by adjusting to the proper water flow rate. Finally, inspect the ductwork for leaks by comparing air temperatures at the unit and distant registers; if there's a significant difference, look for duct leaks.
M
Michael ReedAug 6, 2025
Why is there high head pressure in my Mammoth Heat Pump?
- M
  Michael HodgesAug 6, 2025
  High head pressure in your Mammoth Heat Pump can stem from several causes. First, check for a dirty air filter and either clean or replace it. Also, check the fan motor operation and look for any airflow restrictions. Next, inspect the water flow, checking the pump and valve operation, and adjust the water flow to the proper rate if it is reduced or non-existent. If the inlet water is too hot, check its temperature and the loop system's operation and design. Ensure the return air temperature is within design parameters. Scaling in the waterside heat exchanger can also cause this, so perform a scaling check and clean if necessary. Other possible causes include an overcharged unit (check superheat and subcooling) or non-condensables in the system (vacuum the system and reweigh the charge).

Mammoth HydroBank MS Specifications

General

Model	HydroBank MS
Category	Heat Pump
Power Supply	230V, 50Hz, 1 Phase
Refrigerant	R410A
Noise Level	52 dB(A)
Weight	65 kg
Dimensions (LxWxH)	980 x 350 x 700 mm
Operating Temperature Range	-20°C to 43°C