Wash. Admin. Code § 51-11C-40338 - Section C403.3.8-Hydronic coils
EXCEPTION: |
Replacement coils within existing equipment. |
EXCEPTIONS: |
1. Chilled-water cooling coils that have an airside pressure drop exceeding 0.70 in. of water when rated at 500 fpm face velocity and dry conditions (no condensation). 2. Individual fan-cooling units with a design supply airflow rate [LESS THAN EQUAL TO] 5000 cfm. 3. Constant-air-volume systems. 4. Coils selected at the maximum temperature difference allowed by the cooling plant equipment manufacturer's approved operating conditions. 5. Passive coils (no mechanically supplied airflow). 6. Coils with design entering chilled-water temperature [GREATER THAN EQUAL TO] 50°F (10°C). 7. Coils with design entering air dry-bulb temperature [LESS THAN EQUAL TO] 65°F (18°C). |
EXCEPTIONS: |
1. Hot-water heating systems which utilize heat pumps as the primary source. 2. Individual terminal fan units with a design supply airflow rate [LESS THAN EQUAL TO] 1500 cfm are exempt from the 20°F maximum temperature difference between leaving and entering water temperature requirement. 3. Passive coils (no mechanically supplied airflow). 4. Coils with design leaving air temperature [GREATER THAN EQUAL TO] 95°F (35°C). |
Notes
State regulations are updated quarterly; we currently have two versions available. Below is a comparison between our most recent version and the prior quarterly release. More comparison features will be added as we have more versions to compare.
EXCEPTION: | Replacement coils within existing equipment. |
EXCEPTIONS: | 1. Chilled-water cooling coils that have an airside pressure drop exceeding 0.70 in. of water when rated at 500 fpm face velocity and dry conditions (no condensation). 2. Individual fan-cooling units with a design supply airflow rate [LESS THAN EQUAL TO] 5000 cfm. 3. Constant-air-volume systems. 4. Coils selected at the maximum temperature difference allowed by the cooling plant equipment manufacturer's approved operating conditions. 5. Passive coils (no mechanically supplied airflow). 6. Coils with design entering chilled-water temperature [GREATER THAN EQUAL TO] 50°F (10°C). 7. Coils with design entering air dry-bulb temperature [LESS THAN EQUAL TO] 65°F (18°C). |
EXCEPTIONS: | 1. Hot-water heating systems which utilize heat pumps as the primary source. 2. Individual terminal fan units with a design supply airflow rate [LESS THAN EQUAL TO] 1500 cfm are exempt from the 20°F maximum temperature difference between leaving and entering water temperature requirement. 3. Passive coils (no mechanically supplied airflow). 4. Coils with design leaving air temperature [GREATER THAN EQUAL TO] 95°F (35°C). |